Where can I go to find a little more information about BMW z3 cars?

The best places that I can think of to find the information you are looking for would be to either speak with a local dealer that exclusively sells the BMW z3 or any dealer that has these cars available for purchase. Also, you may find this information in various reviews made by others or by the company itself. An authorized dealer would be your best bet, as they have specific knowledge of these types of cars.