The 2009 BMW Z4 sDrive 35i, an AutoWeek Drivers Log:
EDITORIAL ASSISTANT JONATHAN WONG: So now the Z4 has been bit by the folding-hardtop bug. Am I surprised? Not really. The upside is that a hardtop is good for a quieter cabin and better for four-season driving.
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The 2009 BMW Z4 sDrive 35i, an AutoWeek Drivers Log: