Although a fun car to drive, the quality and workmanship leaves a lot to desired. Surprisingly good gas mileage for this car. The chassis bolts had to be retightened after 45K miles. the knobs on the vents broke off. the plastic cover around the sun visors have broken and oil leaks from this area???? Trunk must be opened with key 75% of the time because the button in the car and on the key doesn't work. speed control lever fell off. Driver door arm rest disfigured just by resting arm on it. Part of grille fell off (not caused by accident). Replaced water pump at 55K miles. glove box opening mechanism broke. Didn't have as many problems with my old Ford Pinto.
Acceleration excellent. Great to drive with the top down. Gas mileage 19-20 local, 25-28 highway (great). Great looks as all SL500's are. Manuverability very good.
Use better materials. This is a very expensive car for the low quality of its parts. Fix the passenger side door so the driver doesn't have to open his door or push the button to release the lock so the passenger can exit.