I HAVE HAD THE FOLLOWING PROBLEMS SINCE BUYING THIS VEHICLE: STEERING COLUMN ASSEMBLY REPLACED IN FIRST MONTH OF OWNING CAR, FUEL LINE REPLACED IN FIRST 6 MONTHES OF OWNING CAR, ELECTRICAL SYSTEM MAL-FUNCHIONED CONTINUALLY REPAIR DEPT. COULD FIND NOTHING WRONG, HAVE DOCUMENTATION ON ALL THESE. KEYS HAD TO BE REPLACED. CAUTION CHECK ENGINE LIGHT HAS COME ON PERIODICALLY, LAST TIME CHECKED BY DEALER, STILL FOUND NOTHING TOLD ME JUST TO IGNORE IT. THAT WAS 2 WEEKS PRIOR TO MY CAR SELF DRIVING ITDSELF. I HAD TAKEN MY FOOT OFF GAS TO COAST ONTO FREEWAY ON RAMP. THE ENGINE ROARED AND BEGAN SPEEDING AND I BEGAN BRAKING AND PLACED BOTH FEET TO THE FLOOR ON BRAKES AND IT JUST KEPT GOING, FASTER, UNTIL I HIT ANOTHER VEHICLE. I AM BEING GIVEN THE "RUN AROUND" BY BOTH MY INSURANCE COMPANY AND THEIR REPAIR COMPANY AND MY ATTORNEY SAYS, SO FAR NO PRODUCT DEFECT HAS BEEN FOUND BY THEM. I CANNOT AFFORD THE COST TO PRIVATELY HAVE THIS PROVEN. MY MERCEDES DEALERSHIP WAS READY TO TRADE UP LAST FALL AT A VERY LOW PRICE BUT I CHOSE NOT TO INCUR ADDED EXPENSE AT THAT TIME. I HAD GONE OVER THE "LEMON LAW" BY ONE MONTH AND THIS IS WHAT MY DCEALERSHIP OFFERED ME. I KNOW I HAVE A DEFECTIVE CAR AND I WILL NEVER DRIVE IT AGAIN.