Mercedes-Benz SLK-Class was the first vehicle to truly popularize the use of a power-retractable convertible top made out of steel panels rather than the more traditional fabric soft top. The SLK280 features a 3.0-liter V6 that produces 228 horsepower while the SLK350's 3.5-liter V6 produces 268 hp.

When retracted, the hardtop takes up space in the trunk, but there's still 6.5 cubic feet left for luggage. Inside, the cabin is attractive with soft-touch materials for most surfaces. Soft and supportive seats remain comfortable even after several hours of driving. With a handcrafted V-8 engine pumping out 355 horsepower, 376 lb-ft of peak torque, and a 7-speed automatic transmission with steering-wheel shift paddles, this roadster provides serious sports car thrills in true AMG style.