If you are thinking of buying a sports car you could enjoy every day, the E85 and E86 BMW Z4 should be top of your list. With well proven and great sounding engines, excellent handling and a choice of Roadster or Coupe body styles, choosing the right Z4 will give you years of pleasurable motoring, but how do you know which is the right one? With the help of this buyer's guide, marque expert David Smitheram describes how to spot a bad car quickly, and how to assess a promising Z4 like a professional. Packed with good advice, from learning the differences between each model (including the M and Alpina Roadster models), running costs, through paperwork, vital statistics, valuation, details of the Z4 community, to whether the car will suit you and your lifestyle. With accompanying colour photos this is the complete guide to choosing, assessing and buying the original BMW Z4.