Hi I am 16 years old and am getting a second car to drive since my last one had 188K miles on it and broke down. I am a very responsible driver who pays for gas and will shell out about 4K along with my parents 6K for this car. What concerns should I have about the reliability of this car? What mileage should I buy it at? What mileage is it safe from defects till (approx.)? Is the clutch smooth? I am going to buy a Z3 (1998) 4 cylinder since it is decently priced.