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Is the top speed of the C230 Coupe determined by tire rating? Evolution Package (C7) has 225/45ZR17. Base model has 205/55R16 H rated. What is the best high speed you guys get with 17' wheels, tires so far. <p>Sudbury-ppp126745.sympatico.ca
 

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Top speed is limited electronically by ECU

Top speed of all import vehicles sold in the US (and Canada, I believe, too) is limited electronically to some 130-ish. If you chip it, then it will be a different story, that's when your horses come into play.<p>proxy.dotcenter.net
 

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Re: Top speed is limited electronically by ECU

The electronic spped limitation i not just for the overseas models. In Europe the top speed is 245 km/h ...<br> <br> ... without chipping of course.<p>
 
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