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Buick Riviera vs. Cadillac STS

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$33,820
$47,280
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Highlights

$33,820
Starting MSRP
$47,280
Starting MSRP
-
Starting MSRP
Supercharged Gas V6
Engine Type
Gas V6
Engine Type
-
Engine Type
18 City / 27 Hwy
MPG
18 City / 27 Hwy
MPG
-
MPG
240 hp
Horsepower
302 hp
Horsepower
-
Horsepower
Front Wheel Drive
Drive Type
Rear Wheel Drive
Drive Type
-
Drive Type
5
Seating Capacity
5
Seating Capacity
-
Seating Capacity
3 yr / 36,000 mi
Basic Warranty
4 yr / 50,000 mi
Basic Warranty
-
Basic Warranty

Engine

Supercharged Gas V6
Engine Type
Gas V6
Engine Type
-
Engine Type
240 @ 5200
SAE Net Horsepower @ RPM
302 @ 6300
SAE Net Horsepower @ RPM
-
SAE Net Horsepower @ RPM
280 @ 3600
SAE Net Torque @ RPM
272 @ 5200
SAE Net Torque @ RPM
-
SAE Net Torque @ RPM
3.8L/231
Displacement
3.6L/220
Displacement
-
Displacement
A/T
4-Speed A/T
Transmission Options
6-Speed A/T
A/T
Transmission w/Dual Shift Mode
Transmission Options
-
Transmission Options
18 City / 27 Hwy
MPG
18 City / 27 Hwy
MPG
-
MPG
13.2 qts
Total Cooling System Capacity
10.9 qts
Total Cooling System Capacity
-
Total Cooling System Capacity

Tires & Wheels

16 x 4 in
Spare Wheel Size
Not Available in
Spare Wheel Size
-
Spare Wheel Size
16 x 6.5 in
Rear Wheel Size
17 x 7.5 in
Rear Wheel Size
-
Rear Wheel Size
P225/60R16
Rear Tire Size
P235/50VR17
Rear Tire Size
-
Rear Tire Size
16 x 6.5 in
Front Wheel Size
17 x 7.5 in
Front Wheel Size
-
Front Wheel Size
Aluminum
Spare Wheel Material
Not Available
Spare Wheel Material
-
Spare Wheel Material
Aluminum
Front Wheel Material
Aluminum
Front Wheel Material
-
Front Wheel Material
T125/70R16
Spare Tire Size
Not Available
Spare Tire Size
-
Spare Tire Size
Aluminum
Rear Wheel Material
Aluminum
Rear Wheel Material
-
Rear Wheel Material
P225/60R16
Front Tire Size
P235/50VR17
Front Tire Size
-
Front Tire Size

Suspension

w/Coil Springs
Suspension Type - Front (Cont.)
Not Available
Suspension Type - Front (Cont.)
-
Suspension Type - Front (Cont.)
Semi Trailing Arm
Suspension Type - Rear
Independent
Suspension Type - Rear
-
Suspension Type - Rear
w/Coil Springs
Suspension Type - Rear (Cont.)
Not Available
Suspension Type - Rear (Cont.)
-
Suspension Type - Rear (Cont.)
MacPherson Strut
Suspension Type - Front
Independent
Suspension Type - Front
-
Suspension Type - Front

Steering

3
Lock to Lock Turns (Steering)
3
Lock to Lock Turns (Steering)
-
Lock to Lock Turns (Steering)
39 ft
Turning Diameter - Curb to Curb
37 ft
Turning Diameter - Curb to Curb
-
Turning Diameter - Curb to Curb
Power
Steering Type
Pwr rack & pinion
Steering Type
-
Steering Type
41 ft
Turning Diameter - Wall to Wall
N/A
Turning Diameter - Wall to Wall
-
Turning Diameter - Wall to Wall
16
Steering Ratio (:1), Overall
18
Steering Ratio (:1), Overall
-
Steering Ratio (:1), Overall

Measurements

207 in
Length, Overall
197 in
Length, Overall
-
Length, Overall
75 in
Width, Max w/o mirrors
73 in
Width, Max w/o mirrors
-
Width, Max w/o mirrors
114 in
Wheelbase
116 in
Wheelbase
-
Wheelbase
43 in
Front Leg Room
43 in
Front Leg Room
-
Front Leg Room
58 in
Front Shoulder Room
59 in
Front Shoulder Room
-
Front Shoulder Room
37 in
Second Leg Room
38 in
Second Leg Room
-
Second Leg Room
100 ft³
Passenger Volume
103 ft³
Passenger Volume
-
Passenger Volume
63 in
Track Width, Rear
62 in
Track Width, Rear
-
Track Width, Rear
63 in
Track Width, Front
62 in
Track Width, Front
-
Track Width, Front
32 in
Liftover Height
N/A
Liftover Height
-
Liftover Height
36 in
Second Head Room
38 in
Second Head Room
-
Second Head Room
5 in
Min Ground Clearance
N/A
Min Ground Clearance
-
Min Ground Clearance
55 in
Height, Overall
58 in
Height, Overall
-
Height, Overall
53 in
Second Hip Room
56 in
Second Hip Room
-
Second Hip Room
5
Passenger Capacity
5
Passenger Capacity
-
Passenger Capacity
38 in
Front Head Room
39 in
Front Head Room
-
Front Head Room
58 in
Second Shoulder Room
57 in
Second Shoulder Room
-
Second Shoulder Room
17 ft³
Trunk Volume
14 ft³
Trunk Volume
-
Trunk Volume
55 in
Front Hip Room
55 in
Front Hip Room
-
Front Hip Room

Weight & Capacity

19 gal
Fuel Tank Capacity, Approx
17 gal
Fuel Tank Capacity, Approx
-
Fuel Tank Capacity, Approx
100 lbs
Dead Weight Hitch - Max Tongue Wt.
100 lbs
Dead Weight Hitch - Max Tongue Wt.
-
Dead Weight Hitch - Max Tongue Wt.
Not Available lbs
Wt Distributing Hitch - Max Trailer Wt.
Not Available lbs
Wt Distributing Hitch - Max Trailer Wt.
-
Wt Distributing Hitch - Max Trailer Wt.
N/A
Aux Fuel Tank Capacity, Approx
N/A
Aux Fuel Tank Capacity, Approx
-
Aux Fuel Tank Capacity, Approx
1,000 lbs
Dead Weight Hitch - Max Trailer Wt.
1,000 lbs
Dead Weight Hitch - Max Trailer Wt.
-
Dead Weight Hitch - Max Trailer Wt.
3,699 lbs
Base Curb Weight
3,973 lbs
Base Curb Weight
-
Base Curb Weight
Not Available lbs
Wt Distributing Hitch - Max Tongue Wt.
Not Available lbs
Wt Distributing Hitch - Max Tongue Wt.
-
Wt Distributing Hitch - Max Tongue Wt.

Safety

-
Brake Assist
Standard
Brake Assist
-
Brake Assist
-
Navigation System
Standard
Navigation System
-
Navigation System
-
Stability Control
Standard
Stability Control
-
Stability Control

Electrical

970
Cold Cranking Amps @ 0° F (Primary)
N/A
Cold Cranking Amps @ 0° F (Primary)
-
Cold Cranking Amps @ 0° F (Primary)
140
Maximum Alternator Capacity (amps)
N/A
Maximum Alternator Capacity (amps)
-
Maximum Alternator Capacity (amps)

Brakes

Power
Brake Type
Pwr
Brake Type
-
Brake Type
10.94 x 0.43 in
Rear Brake Rotor Diam x Thickness
11.7 x 1.0 in
Rear Brake Rotor Diam x Thickness
-
Rear Brake Rotor Diam x Thickness
N/A
Brake ABS System (Second Line)
N/A
Brake ABS System (Second Line)
-
Brake ABS System (Second Line)
Not Available
Drum - Rear (Yes or )
Not Available
Drum - Rear (Yes or )
-
Drum - Rear (Yes or )
11.85 x 1.26 in
Front Brake Rotor Diam x Thickness
11.9 x 1.3 in
Front Brake Rotor Diam x Thickness
-
Front Brake Rotor Diam x Thickness
Yes
Disc - Rear (Yes or )
Yes
Disc - Rear (Yes or )
-
Disc - Rear (Yes or )
Yes
Disc - Front (Yes or )
Yes
Disc - Front (Yes or )
-
Disc - Front (Yes or )
4 Wheel
Brake ABS System
4-wheel
Brake ABS System
-
Brake ABS System

FAQ

Which is more reliable, the 1999 Buick Riviera or the 2011 Cadillac STS?

The 1999 Buick Riviera is more reliable than the 2011 Cadillac STS according to Cars.com consumers, with a reliability rating of 5.0 for the 1999 Riviera versus a reliability rating of 4.3 for the 2011 STS.

Which is more fuel efficient, the 1999 Buick Riviera or the 2011 Cadillac STS?

The 2011 Cadillac STS is more fuel efficient than the 1999 Buick Riviera with 21 MPG combined versus 0 MPG combined.

Which car is cheaper, the 1999 Buick Riviera or the 2011 Cadillac STS?

The 1999 Buick Riviera is cheaper than the 2011 Cadillac STS with a $33,820 starting MSRP versus a $47,280 starting MSRP.

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