I get the same smell and decided it is a product of all the heat being dispelled from the rear near the tires. Having new rubber really compounds the smell. The first time I parked my "new" 2002 S in my garage I thought something was really wrong and contacted the dealer immediately that I had just purchased the car from. They hauled it back to the dealership and did a thorough inspection of brakes, clutch, motor and everything else they could think of to check but found everything to be in perfect order with only 8700 miles on it. I had a PPI done before that which concluded the car was just like a new one from the factory. I have put 2500 thrilling miles on the car in the two months that I have owned it. IMO it's just the Boxster smell and until someone or something proves otherwise, I will just sniff with pride.
