I think Track's flames are a play on the fact that he has a 'Turbo' - Japanese Nissian Silvia? alt mode now (like Drift's alt mode, a Japanese drift-car, being a play on his name), as opposed to the Ford Stingray he once was.

I don't mind the flames actually, I reckon they look pretty cool, a modern take that doesn't detract as much as say... changing the flames to lightning?.

As for the little wings?, meh, they had to be there but the size doesn't bother me though.