 I had been a Mercedes CLK 320 
owner..loved that car UNTIL I purchased 
the new 645ci Convertable. There is NO 
comparison. The BMW handles better,is 
more efficient,does what I ask it to 
do,responds beautifully.drives smothly. 
Have not yet driven in snow,but I am 
sure will be fine. The convertable 
mechanism is great,,absolutly nothing 
to do except press one button. top 
up/or down in seconds.Cannot extol 
virtues enough. will NEVER go back to 
Mercedes. BMW also much easier to do 
business wiht.