Saying Hi from Atlanta. i have gained some knowledge reading through some of your post and responses. i have just purchased a 2003 CLK 430 2DR CONVERTIBLE. i need a donut tire. Does anyone know where i can get an affordable donut rim and tire? The dealer wants $300.00. Also i need to know precisely how to operate the top. The former owner demonstrated it once, but since then i have been trying to do it without any success.