2018 Mercedes-Benz SL 450

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2018 Mercedes-Benz SL 450
2018 Mercedes-Benz SL 450

Key specs

Base trim shown


The good:

  • Acceleration
  • Comfortable ride
  • Magic Sky Control roof
  • Trunk accessibility

The bad:

  • A bit noisy inside for a hardtop
  • Heavy
  • Understeer

1 trim

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2018 Mercedes-Benz SL 450 trim comparison will help you decide.

Notable features

  • V-6, V-8 and V-12 engines
  • Backup camera now standard
  • Retractable-hardtop convertible
  • Two seats
  • AMG performance versions
  • Hands-free trunk-lid operation standard

2018 Mercedes-Benz SL 450 review: Our expert's take

What it is: The two-seat Mercedes-Benz SL-Class, a retractable-hardtop convertible, is constructed mostly of aluminum and equipped with a choice of V-6 or V-8 engines in luxury guise, and with V-8 or V-12 power in AMG performance models. The SL competes with the BMW 6 Series.

A backup camera and side mirrors that project the Mercedes-Benz logo are now standard.

AMG SL63, SL65

AMG performance versions of the SL-Class are available with a choice of power output. The SL63 uses a twin-turbocharged 5.5-liter V-8 engine that produces 577 horsepower and 664 pounds-feet of torque. The SL65 boasts a 621-hp, twin-turbo 6.0-liter V-12 engine that sends 738 pounds-feet of torque to the rear wheels. Both use a seven-speed automatic transmission. Mercedes says the SL65 can go from zero-to-60 mph in just 3.9 seconds. 

What's Special

  • Seven-speed automatic transmission with driver-initiated shift modes

  • AMG-specific LED daytime running lamps 

  • AMG rear spoiler 

  • Heated, ventilated and massaging seats

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 4.9
  • Interior design 4.5
  • Performance 4.8
  • Value for the money 4.2
  • Exterior styling 4.8
  • Reliability 4.8

Most recent consumer reviews


One minor issue that was addressed and resolved.

Great GT. Very comfortable. Excellent performance. Super good looking. Would buy again. Is the 3rd SL we've owned and, is likely, THE best one of all. Doesn't have that V8 sound but at $20K less in price, we'll accept that . . . in a heartbeat! I.e. 0-60 in 4.5 seconds and 107 MPH in the standing 1/4 mile is plenty quick enough!


Best car and best dealership ever!!!

This car is Fantastic! Stylish, comfortable, every possible safety feature, technologically advanced, fabulous sound system, and even a built in phone charger. The BRST car ever!!!


actually it's a 2017 with 9K miles

great combination of luxury and sportiness. drives like a 2 seat sports car when top down, or a comfortable sedan with top up. great acceleration for a 6 cyl. pricey but well worth it. fills a unique niche with little competition.

See all 8 consumer reviews


New car and Certified Pre-Owned programs by Mercedes-Benz
New car program benefits
48 months/50,000 miles
48 months/50,000 miles
48 months/50,000 miles
Roadside assistance
48 months/50,000 miles
Certified Pre-Owned program benefits
Maximum age/mileage
6 years old or less/less than 75,000 miles
Basic warranty terms
1 year/unlimited miles
1 year/unlimited miles
Dealer certification required
164-point inspection
Roadside assistance
View all cpo program details

Have questions about warranties or CPO programs?

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