OVER THE COURSE OF THE WEEKEND THE VDS AND ABS WARNING LIGHTS CAME ON INTERMITTENTLY. ON MONDAY, WENT TO START THE CAR FOR WORK AND HEARD A SLIGHT POPPING SOUND AND CAR WOULD NOT TURNOVER. SMELLED BURNING PLASTIC, BUT NO SMOKE. UPON FURTHER INSPECTION THAT EVENING DISCOVERED THE VINYL OF THE DRIVER'S SIDE REAR WHEEL WELL WAS BURN THEN REMOVED THE SPARE TIRE COVER TO DISCOVER A SMALL FIRE HAD OCCURRED IN THE SPARE TIRE COMPARTMENT. IT APPEARS AS THOUGH THE WIRING HARNESS HAD CAUGHT ON FIRE THERE. THE CAR WAS WIRED FOR A TRAILER HITCH BY THE DEALER.