I know its hard to see when having fun in it, but does it blow blue ish exhaust gas when 'giving in the beans" when warm.
My mk4 gti did, but only when warm, it drank oil like petrol when giving it the beans, was put down to the turbo oil seal on its was out... Making just under 15psi out of a 15 year old car with 180,000 on the clock would cause a probs.
Tho at ur age she should be keeping hers in.