I have a 99 clk320 and I was thinking of trading up to a w208 430/55. What effects will this have on my insurance as im still a student trying to scrape by lol. Also is gas mileage really different between a 430 to a 55. What about gas mileage between a 320 to a 430/55. Is it lower or dramatically lower?

 

You likely cannot afford the insurance on the 55, the 430 is not too bad. Each step is a pretty good step. The 430 is a nice piece of power compared to the 320, the 55 is that much better.

 

Your insurance rate will differ greatly based on your location, age and driving record. Mine runs $1100/year for 300/300 and a 500 ded.

Fuel mileage EPA estimates for the 55 are 17/24 and I usually see 20/27.