The Mercedes-Benz SL 63 AMG is technically in a niche of its own, without a single direct competitor, as there are no other roadsters with a retractable hardtop and over 500 hp in any other car manufacturer's stable.
Of course, the same niche tag could be put on any of the other three models that CAR Magazine has decided to put up against the German roadster.
With a 5.5-liter twin-turbocharged V8 that delivers 537 hp and 800 Nm (590 lb ft) of torque in its “normal” version and 564 hp and 900 Nm (664 lb ft) of torque with the Performance Package option that's fitted to the test version, the SL 63 AMG is by far the quickest convertible of this foursome.
Not only that, but it's also very comfortable, has the best brakes of the bunch and has by far the greatest sounding V8 in the group. You shouldn't take our word for it though, so why don't you check out CAR's comparative test by yourself.
With a 5.5-liter twin-turbocharged V8 that delivers 537 hp and 800 Nm (590 lb ft) of torque in its “normal” version and 564 hp and 900 Nm (664 lb ft) of torque with the Performance Package option that's fitted to the test version, the SL 63 AMG is by far the quickest convertible of this foursome.
Not only that, but it's also very comfortable, has the best brakes of the bunch and has by far the greatest sounding V8 in the group. You shouldn't take our word for it though, so why don't you check out CAR's comparative test by yourself.