Driving home from work a few days ago, noticed during warm up that the car was running rich (significant amount of black smoke from the exhaust), went away soon afterward. Yet, when the car was warmed up, and under full throttle, I could smell a significant amount of fumes within the cabin (enough that I needed to open the windows up to get the smell out of the cabin). Are you guys (and gals) getting this too? I feel as though I may have an exhaust leak, so wanted to see if someone else had seen this too. Thanks!