Just got an '06 Sti, had 695 miles on it when I bought it last week. Now has just over 1100 miles (thanks to the drive from home to college), so it's still in the break in period. I have my rev meter set at 5000 rpm's, which has helped me avoid redlining the car so far. Starting late last week, though, I started getting a weird smell after kickin' it off the line... I'm trying to get used to the car, and I've found that I can get much better acceleration off the line if I rev to about 2500-3000 rpm before letting off the clutch (otherwise I get a second or two lag in first gear before I get pushed back in my seat). That's when I get the smell, and it only lasts a few seconds. Seems to be coming through my air vents (the A/C has been on about 90% of the time I've smelled it). I'm confused, and a bit concerned, and any advice would be greatly appreciated.