 Bought this car with 32,000 miles on it, and have put about 9,000 on it since.  Beautiful styling was the initial attraction.  Overall pleased with ride and handling and fuel economy. Occasionally get over 30 mpg on highway trips.  Transmission is unpredictably jerky at low speeds on occasion.  Radio cuts off by itself, stays off for a few seconds, then comes back on in CD mode.  Dealer not been able to fix.  Brakes very touchy also.  Overall impression is great design and engineering (except for the cupholders, what were they thinking?) but overall poor execution.  We've been more pleased with the BMWs we've had.  The M-B has fewer features and not near the quality of my daughter's 2006 Accord EX