Which is better Z4 or Z3?I want to know in detail.Thank

My vote is for the Z4 hands down. I've test driven the Z3 and have a friend who owns one but I bought a Z4 2.5 less then a month ago and it's one great car. BMW release the same horsepower specs for the 4, but I think it has more power. It's surprisely comfortable for a roadster with a great sound system. IMHO is superior in almost every way. As for it's unusual looks, all I can say is it really grows on you and I get long stares and positive reactions everywhere I go. This car gets noticed.

Z4 is a far superior car. The Z3 was underdeveloped as far as BMW's go and is not considered one of their better cars. However you may want to consider a Z3M. They look better than the standard Z3 and are very nice to drive. The handling is said to be well sorted too though i cant say i pushed it that hard :)