It used to be that if you were interested in buying a BMW Z4, you had to make a choice. Do you want an enclosed coupe, with its full structural integrity, or a rag top convertible, with its attending chassis flex that all drop tops have. With the redesigned 2009 Z4, BMW took that choice away, making all models both a hard top and a convertible. It's like getting two cars for the price of one.
With the top up, the Z4 feels like its chiseled out of a block of steel – solid, stable, quiet, and tight. But what I found remarkable was that there was no real difference in the way it feels with the top stowed in the trunk. There is virtually no cowl shake, chassis flex or judder over potholes, or railroad tracks, like you'd find in the 1 Series or even the 3 Series convertibles.
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2009 BMW Z4 sDrive35i on AutoGuide.com
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