The other day (when the car was fully warmed up) I reached a long open dual carriageway, was already rolling along slowly, and accelerated hard up through the gears. I had the air con on as it was quite warm outside that day. When I was hitting the very high revs (with the rev limiter light coming on in each gear) I could detect a slight smell which I thought seemed similar to burning but wasn't distinct enough to worry me, however the cabin seemed quite warm (which I know will happen as the e