the slk55 is a beast, i was about to get one when deciding 335i vs. slk although i also had the m roadster in mind with an e46 m3, c55, and clk55 at the time.
i got the 335i as to slk55 cause i needed the trunk and rear back seats. to me it was more practical of a car. now if i did get the car it would have ecu, intake, headers,and exhaust and that will give any tuned 335i a run for their money
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