During the last week or so, I have noticed a bad smell coming from the rear of my car. After driving around for about 15 minutes, I get down around the rear wheels and smell something that is very similar to burning rubber, mind you I have not been smoking the tires. Anyway, I dont notice any mechanical problems, just the smell. I looked for a hooked plastic bag or something on the exhaust, but saw nothing. Was wondering if some of you more mechanically inclined Bullittheads may have some ideas what this may be before I drag the car back to the dealer yet again. Any suggestions would be appreciated. Thanks!