Purchased from a private party with 25K on the odometer. Currently have about 99.4K miles on it. This has been far the most reliable car we've ever owned - Nissan, Honda, Toyota, Mazda. When you do basic maintenance yourself, ownership costs are somewhat comparable to many other brands. Just have to keep an eye out on the cooling system, heard that this was/is the weakest part of the E39's (so far no problems with mine). Average MPG during summer months: 24-27
Smooth, bulletproof inline 6 engine. Tight chassis, relatively quiet interior, great balance between ride and handling. Easy to do oil changes.