Today when I was driving (09 cooper S) I noticed that it smelled really strong of oil. When I got home I smelled my exhaust and it was definitely coming out of there. Now i can only think of three things that would make this happen. Head gasket, turbo gasket, and piston rings. Any more ideas?

 

Check for oil leaks from around the oil pan gasket/turbo lines. I thought my S was buring oil too, but it turned out I had an oil pan gasket leak as well as a front crank seal leak.