Mercedes-Benz SLC 
The SL is a coupe-cabriolet with a power-retractable hardtop. The base SL 450 gets a 362-horsepower, twin-turbo 3.0L V6. Next comes the SL 550 with its 449-horsepower, twin-turbo 4.7L V8. For more muscle, the AMG SL 63 and its 577-horsepower, twin-turbo 5.5L V8 should do the trick. Finally, the AMG SL 65 has a 621-horsepower, twin-turbo 6.0LV12. Depending on the version, you’ll get a seven- or nine-speed automatic transmission that relays all that power to the rear wheels.
Pros
- Superior performance (SL 63, SL 65)
- Superb nine-speed automatic gearbox (SL 450, SL 550)
- Flawless comfort and quiet
- Impeccable ride with the top down
Cons
- Vague steering in Comfort mode (SL 550)
- AMG SL 65 is really expensive
- Heavy despite the aluminum
- Distracting menu architecture
