I am considering a used XT Limited, 2005, w/ 39k miles. I love the ride, power, utility, and comfort. XT has 'sport seats' are more comfy than the Limited's. The Subaru reputation for reliability is somewhat blemished for the turbo model, and others say the 2005 is not quite as reliable as the 2006-09. Is this OB a risky purchase? What should I look for? Can the health of the turbo be evaluated before I purchase the car?