New CLK 430 or used CLK 55 AMG?

Should I get a new CLK 430 or a used CLK 55 AMG? I looked at starmark for CLK 55 AMG's and the prices are the same as sticker prices, that is messed up. I really want the CLK 55 but the price is just outrageous for what I can afford.<br>
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Would I notice a big difference between a CLK 430 and a CLK 55? If i'm at a stop light and I just floor it would I notice a HUGE difference? I know this is a dumb question but I gotta ask. Also the CLK 430 is 279 HP right? If i'm driving around a track would I notice a large difference between the 430 and the 55? Lets say my lap times on the CLK 430 is about 50 seconds, what would it be on the 55? <br>
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Thanks!<p>adsl-76-158-41.mia.bellsouth.net

<br> suspension are much better. Is the same set up but with larger sway bar, spring and shock. This set-up were with track time in mind. Where the Clk 430 set-up as for everyday drive.<p>