I own a 3 litre z4 and have for over a year and it is definitely NOT a chick car.
They will always be called chick cars by SOME clueless TARDS because they have a soft top. Don't mistake car beauty for femininity. The aggresive lines and styling of the Z4 make it extremely manly.
And 155 mph (restricted) and 0-60mph in 5.9 seconds (the M's are even faster obviously but weren't out when I bought mine)... how can you say that's a girls car?
Let me tell you, women THROW themselves at you in this car and you get a tiny fraction of the road rage you get in other cars, maybe because it is a BMW?
And I have no idea where you are getting all this crash test crap from... They are excellent in a crash for the driver
http://www.autoexpress.co.uk/crashtest/car/181/ this is the very reason I opted for the Z4 over the Lotus Elise...