[BAracer]

Just out of interest, the recent DiSCA 3hr race at Derby was won by a standard Scalextric car over Scalextric cars with modified chassis and grub screwed wheels. Both classes shared the same standard 18k motor and rear tyres. So whilst they might be classed as toys, they are quite well optimized racing toys. However, if you popped a more powerful motor into a standard toy car, you would probably find its limits quite quickly.