I have owned cars such as the Honda S2000, Porsche Boxster S, 2001 M Coupe, Subaru WRX, Integra Type R and can honestly say that the BMW Z4 M Roadster is the most exciting car to drive. It doesn't have the balance-poise of a Boxster S but it will make your heart rate shoot up in a flash once you've tried shifting at redline under full throttle. It's not an easy car to drive at first and drivers should be careful at the limit. My main complaints are: 1-Ride quality. Compared to the Boxster S or Cayman S the ride is VERY choppy-bouncy. The chassis does not soak up bumps as well as the Porsche. 2-Build quality. Exterior panel gaps and the interior trim pieces wear out quickly.
Engine feels-sounds great at every RPM, best BMW manual shifter ever, good brakes, great seats, quick steering response and good steering feel, amazing sound system, extended leather option makes the interior feel very rich.
Ride is too bouncy-choppy even for a sports car. The Boxster S manages to handle just as well if not better yet feels like a Lexus compared to the Z4 M. Build quality is not great; it shows that the car is built in the USA.
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