The biggest disappointment is with lack of traction. You get on it with traction control off, and the tires spin. With ATC on, the car responds by actually coming to a halt right after take off. You nurse the pedal, and start wondering if you should have saved a few $K and bought a SL600. The convenience features controls are very inconvenient as one goes through the menues to change settings, etc. Also a few electrical problems with the convenience package: Driver's seat won't retract on exit. Car won't start easily if left parked for 2 or more days. "1-" or "2 Malfunctions, Convenience Functions Unavailable" is often displayed with no indications of the problem. Then corrects itself
Engine power. Great seats.
1. Display some features seperately from the "convenience system". eg. Ambient temp. 2. Improve traction 3. 4500lbs is excessive for a roadster 4. There must be a way to decide to lock the shifter in its current gear regardless of where the shifter was just before the decision. Not on the SL65
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.