Im just starting to notice this, i think....
At times, it seems like theres some kind of heat seeping thru the floor, specifically the area around the gas pedal. At first i just figured it was nothign; its been really hot here recently and i always drive with windows down, no ac.
I reached down, and didnt really feel any air blowing around, so i dont think its from the HVAC system, which is never even on...
Lately my exhaust has been sounding a bit louder, maybe theres an exhuast leak around that area??