Alpine Buick GMC

(1,464 reviews)
3106 W County Line Rd, Littleton, CO 80129
Visit Alpine Buick GMC
Sales hours:
Service hours:
View all hours
Sales Service
Monday 9:00am–8:00pm 7:00am–6:00pm
Tuesday 9:00am–8:00pm 7:00am–6:00pm
Wednesday 9:00am–8:00pm 7:00am–6:00pm
Thursday 9:00am–8:00pm 7:00am–6:00pm
Friday 9:00am–8:00pm 7:00am–6:00pm
Saturday 9:00am–8:00pm 8:00am–5:00pm
Sunday Closed Closed
2026 state dealer award
View 3 awards
2026 state dealer award 2022 state dealer award
2022 consumer dealer award
New (855) 714-2336 (855) 714-2336
Used (877) 410-5491 (877) 410-5491
Service (855) 714-2356 (855) 714-2356

212 vehicles for sale

[{"search_type":"general-inventory-search","vehicle_array":[{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2021","model":"Sierra 1500","listing_id":"c489bdd4-a497-4d60-bb2e-a5b07ad7e877","seller_type":"dealership","customer_id":"23030","vin":"1GTP9EED3MZ353461","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black w/Kalahari Accents","exterior_color":"Summit White","fuel_type":"Gasoline","mileage":"83639","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"37393","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2021","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Preferred AWD","make":"Buick","cat":"luxurysuv_crossover","year":"2024","model":"Envision","listing_id":"d08fcbc3-4ce8-4d5d-ab41-151bc61dd0b4","seller_type":"dealership","customer_id":"23030","vin":"LRBFZME43RD056330","stock_type":"Used","certified_preowned":false,"interior_color":"Ebony w/Ebony Accents","exterior_color":"Smokey Amethyst Metallic","fuel_type":"Gasoline","mileage":"49964","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"All-wheel Drive","msrp":"0","price":"24590","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"Buick:Envision:Preferred AWD","canonical_mmty":"Buick:Envision:Preferred AWD:2024","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Big Horn/Lone Star","make":"RAM","cat":"truck_fullsize","year":"2025","model":"1500","listing_id":"0b0b1b36-a0c1-4a5c-9a49-1f4b4b1285bb","seller_type":"dealership","customer_id":"23030","vin":"1C6SRFFP2SN618309","stock_type":"Used","certified_preowned":false,"interior_color":"Black","exterior_color":"Diamond Black Crystal Pearlcoat","fuel_type":"Gasoline","mileage":"11309","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"41490","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["great_deal","american_made_index_ranking"],"canonical_mmt":"RAM:1500:Big Horn/Lone Star","canonical_mmty":"RAM:1500:Big Horn/Lone Star:2025","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"LT","make":"Chevrolet","cat":"truck_fullsize","year":"2023","model":"Silverado 1500","listing_id":"58fda8a0-4099-43c1-8f9e-8b9f606c03d7","seller_type":"dealership","customer_id":"23030","vin":"1GCPDKEK2PZ220514","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black","exterior_color":"Sterling Gray Metallic","fuel_type":"Gasoline","mileage":"38172","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"35867","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"Chevrolet:Silverado 1500:LT","canonical_mmty":"Chevrolet:Silverado 1500:LT:2023","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Denali","make":"GMC","cat":"suv_fullsize","year":"2022","model":"Yukon","listing_id":"250dec26-621b-402c-b380-a13880bf7318","seller_type":"dealership","customer_id":"23030","vin":"1GKS2DKL0NR168617","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black Perforated Leather Seating Surfaces With Choice Of 2 I","exterior_color":"Onyx Black","fuel_type":"Gasoline","mileage":"48476","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"56979","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"GMC:Yukon:Denali","canonical_mmty":"GMC:Yukon:Denali:2022","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"AT4","make":"GMC","cat":"truck_fullsize","year":"2026","model":"Sierra 1500","listing_id":"226254f9-ac26-4b26-939f-43e36658af30","seller_type":"dealership","customer_id":"23030","vin":"3GTUUEEL9TG287862","stock_type":"New","certified_preowned":false,"interior_color":"Jet Black w/Kalahari Accents","exterior_color":"Summit White","fuel_type":"Gasoline","mileage":"6","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"75054","price":"64304","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["price_drop_in_cents"],"canonical_mmt":"GMC:Sierra 1500:AT4","canonical_mmty":"GMC:Sierra 1500:AT4:2026","cpo_package":null,"photo_count":32,"stock_sub":""},{"trim":"S","make":"Nissan","cat":"crossover_compact","year":"2024","model":"Rogue","listing_id":"8e5552fc-7fce-4456-8ea1-adbce86ed1b8","seller_type":"dealership","customer_id":"23030","vin":"5N1BT3AA3RC684431","stock_type":"Used","certified_preowned":false,"interior_color":"Charcoal","exterior_color":"Super Black","fuel_type":"Gasoline","mileage":"33492","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Front-wheel Drive","msrp":"0","price":"20867","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal","american_made_index_ranking","hot_car"],"canonical_mmt":"Nissan:Rogue:S","canonical_mmty":"Nissan:Rogue:S:2024","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Onyx Edition","make":"Subaru","cat":"suv_midsize","year":"2025","model":"Outback","listing_id":"bf7fe1af-37a8-47b8-823d-e5af68b36a2c","seller_type":"dealership","customer_id":"23030","vin":"4S4BTALCXS3184338","stock_type":"Used","certified_preowned":false,"interior_color":"Gray","exterior_color":"Crystal White Pearl","fuel_type":"Gasoline","mileage":"29445","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"All-wheel Drive","msrp":"0","price":"32283","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal","hot_car"],"canonical_mmt":"Subaru:Outback:Onyx Edition","canonical_mmty":"Subaru:Outback:Onyx Edition:2025","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Premium","make":"Lexus","cat":"luxurysuv_crossover","year":"2023","model":"RX 350","listing_id":"fc1dfc5b-dc19-483c-b385-fd180b2d5150","seller_type":"dealership","customer_id":"23030","vin":"2T2BAMBA4PC012778","stock_type":"Used","certified_preowned":false,"interior_color":"Black w/Black Open Pore","exterior_color":"Nebula Gray Pearl","fuel_type":"Gasoline","mileage":"22504","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Front-wheel Drive","msrp":"0","price":"47924","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"Lexus:RX 350:Premium","canonical_mmty":"Lexus:RX 350:Premium:2023","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Raptor","make":"Ford","cat":"truck_fullsize","year":"2023","model":"F-150","listing_id":"2894d569-fe9d-422c-9888-fbfb91961008","seller_type":"dealership","customer_id":"23030","vin":"1FTFW1RG1PFB29208","stock_type":"Used","certified_preowned":false,"interior_color":"BLACK LEATHER BUCKET SEATS","exterior_color":"OXFORD WHITE","fuel_type":"Gasoline","mileage":"76905","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"61487","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"Ford:F-150:Raptor","canonical_mmty":"Ford:F-150:Raptor:2023","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Cayenne","make":"Porsche","cat":"luxurysuv_crossover","year":"2022","model":"Cayenne","listing_id":"7eaea4a5-03fc-4fcb-be27-f4606c6cb917","seller_type":"dealership","customer_id":"23030","vin":"WP1AA2AY7NDA04286","stock_type":"Used","certified_preowned":false,"interior_color":"Black","exterior_color":"White","fuel_type":"Gasoline","mileage":"54297","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"All-wheel Drive","msrp":"0","price":"45687","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["great_deal","hot_car"],"canonical_mmt":"Porsche:Cayenne:Cayenne","canonical_mmty":"Porsche:Cayenne:Cayenne:2022","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Willys","make":"Jeep","cat":"suv_midsize","year":"2025","model":"Wrangler","listing_id":"1efb4ed8-a0af-4c46-b48e-79a61de86f19","seller_type":"dealership","customer_id":"23030","vin":"1C4PJXDN6SW597469","stock_type":"Used","certified_preowned":false,"interior_color":"Black","exterior_color":"Bright White Clearcoat","fuel_type":"Gasoline","mileage":"19383","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"38393","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["fair_deal","american_made_index_ranking"],"canonical_mmt":"Jeep:Wrangler:Willys","canonical_mmty":"Jeep:Wrangler:Willys:2025","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Denali Ultimate","make":"GMC","cat":"truck_fullsize","year":"2024","model":"Sierra 1500","listing_id":"bbce3f83-9520-42bd-a043-1b90e09d409d","seller_type":"dealership","customer_id":"23030","vin":"1GTUUHEL9RZ209219","stock_type":"Used","certified_preowned":false,"interior_color":"Alpine Umber","exterior_color":"Downpour Metallic","fuel_type":"Gasoline","mileage":"28209","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"63612","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal","american_made_index_ranking"],"canonical_mmt":"GMC:Sierra 1500:Denali Ultimate","canonical_mmty":"GMC:Sierra 1500:Denali Ultimate:2024","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"LT","make":"Chevrolet","cat":"truck_fullsize","year":"2025","model":"Silverado 1500","listing_id":"c0da6306-bd46-4982-8e7f-efcc3a261b6e","seller_type":"dealership","customer_id":"23030","vin":"3GCUKDED3SG199820","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black","exterior_color":"Cypress Gray","fuel_type":"Gasoline","mileage":"39756","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"40687","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal","american_made_index_ranking"],"canonical_mmt":"Chevrolet:Silverado 1500:LT","canonical_mmty":"Chevrolet:Silverado 1500:LT:2025","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Sport-L","make":"Honda","cat":"hybrid_passenger","year":"2025","model":"Accord Hybrid","listing_id":"c1238b0b-3c5a-4505-ada8-2ce72775a5c1","seller_type":"dealership","customer_id":"23030","vin":"1HGCY2F76SA020502","stock_type":"Used","certified_preowned":false,"interior_color":"Black","exterior_color":"Platinum White Pearl","fuel_type":"Hybrid","mileage":"3660","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Front-wheel Drive","msrp":"0","price":"35501","dealer_zip":"80129","bodystyle":"Sedan","cpo_indicator":false,"relevancy_score":null,"badges":["price_drop_in_cents","good_deal","american_made_index_ranking"],"canonical_mmt":"Honda:Accord Hybrid:Sport-L","canonical_mmty":"Honda:Accord Hybrid:Sport-L:2025","cpo_package":null,"photo_count":15,"stock_sub":""},{"trim":"Pro","make":"GMC","cat":"truck_fullsize","year":"2026","model":"Sierra 2500","listing_id":"3f38f747-2b14-4c32-8363-52d09b28b96f","seller_type":"dealership","customer_id":"23030","vin":"1GT5ULE74TF223676","stock_type":"New","certified_preowned":false,"interior_color":"Jet Black","exterior_color":"Summit White","fuel_type":"Gasoline","mileage":"6","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"57324","price":"56324","dealer_zip":"80129","bodystyle":"Truck","cpo_indicator":false,"relevancy_score":null,"badges":[],"canonical_mmt":"GMC:Sierra 2500:Pro","canonical_mmty":"GMC:Sierra 2500:Pro:2026","cpo_package":null,"photo_count":32,"stock_sub":""},{"trim":"4WD Z71","make":"Chevrolet","cat":"suv_fullsize","year":"2024","model":"Tahoe","listing_id":"362a93be-282d-4cf2-89fe-382404edd316","seller_type":"dealership","customer_id":"23030","vin":"1GNSKPKD8RR203102","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black","exterior_color":"Black","fuel_type":"Gasoline","mileage":"54912","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"57381","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["great_deal","american_made_index_ranking"],"canonical_mmt":"Chevrolet:Tahoe:4WD Z71","canonical_mmty":"Chevrolet:Tahoe:4WD Z71:2024","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"RS","make":"Chevrolet","cat":"suv_midsize","year":"2025","model":"Blazer","listing_id":"a45fc38e-bb66-426e-979c-effe70980b8a","seller_type":"dealership","customer_id":"23030","vin":"3GNKBERSXSS194253","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black/Red Accents","exterior_color":"Sterling Gray Metallic","fuel_type":"Gasoline","mileage":"30896","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Front-wheel Drive","msrp":"0","price":"30984","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"Chevrolet:Blazer:RS","canonical_mmty":"Chevrolet:Blazer:RS:2025","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Preferred FWD","make":"Buick","cat":"suv_midsize","year":"2025","model":"Envista","listing_id":"c40da015-1bc4-44e3-a548-d32c2c5ff772","seller_type":"dealership","customer_id":"23030","vin":"KL47LAEP6SB087244","stock_type":"Used","certified_preowned":false,"interior_color":"Ebony w/Ebony Interior","exterior_color":"Ebony Twilight Metallic","fuel_type":"Gasoline","mileage":"22392","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Front-wheel Drive","msrp":"0","price":"21661","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["great_deal"],"canonical_mmt":"Buick:Envista:Preferred FWD","canonical_mmty":"Buick:Envista:Preferred FWD:2025","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Denali","make":"GMC","cat":"suv_fullsize","year":"2022","model":"Yukon XL","listing_id":"41f18758-ec74-4f45-8b7e-5de27d36850d","seller_type":"dealership","customer_id":"23030","vin":"1GKS2JKL3NR102254","stock_type":"Used","certified_preowned":false,"interior_color":"Jet Black Perforated Leather Seating Surfaces With Choice Of 2 I","exterior_color":"White Frost Tricoat","fuel_type":"Gasoline","mileage":"87557","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"Four-wheel Drive","msrp":"0","price":"49987","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal"],"canonical_mmt":"GMC:Yukon XL:Denali","canonical_mmty":"GMC:Yukon XL:Denali:2022","cpo_package":null,"photo_count":20,"stock_sub":""},{"trim":"Premium 7-Passenger","make":"Subaru","cat":"suv_midsize","year":"2025","model":"Ascent","listing_id":"611c0b1f-934b-454b-9547-80430d5271ca","seller_type":"dealership","customer_id":"23030","vin":"4S4WMADD4S3408659","stock_type":"Used","certified_preowned":false,"interior_color":"Warm Ivory","exterior_color":"Autumn Green Metallic","fuel_type":"Gasoline","mileage":"29296","sponsored":false,"nvi_program":false,"dealer_name":"Alpine Buick GMC","sponsored_type":"standard","drivetrain":"All-wheel Drive","msrp":"0","price":"33883","dealer_zip":"80129","bodystyle":"SUV","cpo_indicator":false,"relevancy_score":null,"badges":["good_deal","american_made_index_ranking","hot_car"],"canonical_mmt":"Subaru:Ascent:Premium 7-Passenger","canonical_mmty":"Subaru:Ascent:Premium 7-Passenger:2025","cpo_package":null,"photo_count":20,"stock_sub":""}]}]
Summit White 2021 GMC Sierra 1500 AT4 Truck
Used

2021 GMC Sierra 1500 AT4

83,639 mi.
$37,393
Smokey Amethyst Metallic 2024 Buick Envision Preferred AWD SUV
Used

2024 Buick Envision Preferred AWD

49,964 mi.
$24,590
Diamond Black Crystal Pearlcoat 2025 RAM 1500 Big Horn/Lone Star Truck
Used

2025 RAM 1500 Big Horn/Lone Star

11,309 mi.
$41,490
Sterling Gray Metallic 2023 Chevrolet Silverado 1500 LT Truck
Used

2023 Chevrolet Silverado 1500 LT

38,172 mi.
$35,867
Onyx Black 2022 GMC Yukon Denali SUV
Used

2022 GMC Yukon Denali

48,476 mi.
$56,979
Summit White 2026 GMC Sierra 1500 AT4 Truck
New

2026 GMC Sierra 1500 AT4

$64,304 $1,000 price drop
Super Black 2024 Nissan Rogue S SUV
Used

2024 Nissan Rogue S

33,492 mi.
$20,867
Crystal White Pearl 2025 Subaru Outback Onyx Edition SUV
Used

2025 Subaru Outback Onyx Edition

29,445 mi.
$32,283
Nebula Gray Pearl 2023 Lexus RX 350 Premium SUV
Used

2023 Lexus RX 350 Premium

22,504 mi.
$47,924
OXFORD WHITE 2023 Ford F-150 Raptor Truck
Used

2023 Ford F-150 Raptor

76,905 mi.
$61,487
White 2022 Porsche Cayenne Cayenne SUV
Used

2022 Porsche Cayenne Cayenne

54,297 mi.
$45,687
Bright White Clearcoat 2025 Jeep Wrangler Willys SUV
Used

2025 Jeep Wrangler Willys

19,383 mi.
$38,393
Downpour Metallic 2024 GMC Sierra 1500 Denali Ultimate Truck
Used

2024 GMC Sierra 1500 Denali Ultimate

28,209 mi.
$63,612
Cypress Gray 2025 Chevrolet Silverado 1500 LT Truck
Used

2025 Chevrolet Silverado 1500 LT

39,756 mi.
$40,687
Platinum White Pearl 2025 Honda Accord Hybrid Sport-L Sedan
Used

2025 Honda Accord Hybrid Sport-L

3,660 mi.
$35,501 $2,199 price drop
Summit White 2026 GMC Sierra 2500 Pro Truck
New

2026 GMC Sierra 2500 Pro

$56,324
Black 2024 Chevrolet Tahoe 4WD Z71 SUV
Used

2024 Chevrolet Tahoe 4WD Z71

54,912 mi.
$57,381
Sterling Gray Metallic 2025 Chevrolet Blazer RS SUV
Used

2025 Chevrolet Blazer RS

30,896 mi.
$30,984
Ebony Twilight Metallic 2025 Buick Envista Preferred FWD SUV
Used

2025 Buick Envista Preferred FWD

22,392 mi.
$21,661
White Frost Tricoat 2022 GMC Yukon XL Denali SUV
Used

2022 GMC Yukon XL Denali

87,557 mi.
$49,987
Autumn Green Metallic 2025 Subaru Ascent Premium 7-Passenger SUV
Used

2025 Subaru Ascent Premium 7-Passenger

29,296 mi.
$33,883

Used cars for sale by city

Used cars for sale in Littleton, CO by make