This is a 2007 MINI Cooper S with a turbocharged engine. The engine additionally has the John Cooper Works (JCW) engine tuning kit installed on it when the engine was around 8000 miles old. This tuning kit adds another 17-20 horsepower to the standard Cooper S engine. The oil sample was taken during an oil change. I should also mention that I did 80 minutes of hard racetrack driving on this oil sample. The current UOA is for gold GC 0W-30. The sample dated 02/01/09 is also for gold GC. The sample dated 05/24/08 is for BMW/MINI 5W-30 oil. No racetrack driving on the previous samples. Despite some track driving, everything looks good in this sample except slightly high levels of iron. I guess this is something I would have to live with. Any comments? BLACKSTONE COMMENTS: "Wear again looks pretty good in the sample from your Mini 1.6L 4-cylinder. Metals were generally low and in a very nice balance. Iron was mildly high again, but this is probably from the racing, and we might add that typically we'd expect metals even higher since the engine takes a beating on the track, but your numbers are nice and low. The TBN of 4.7 shows plenty of additive still active against acidity, and resultantly wear. The viscosity was 0W/30, and no water, signs of antifreeze, or fuel contamination found. Try ~6K miles on the next oil fill."