Top Gear Overdrive
Sent in by Dave Elves
After finishing the last circuit, the game shows the Taco (hidden car)
racing around (on Swampy Depot, I believe, but it may change, depending
on what place you got). The words "Congratulations, you have passed all
6 circuits" will scroll up, then at the press of a button, you go back to
the title screen. Finishing with all 3rds, all 2nds, all 1sts (and other
strange requirements like that) Will land you some hidden cars, I believe.
The credits do not show at the end, you have to select credits from the
main menu at the title screen. I'm not sure if you get a car for just
passing the circuit or not, because I used the all cars cheat, just to
see what the extra cars were like (but I never used them, cause they
were too fast to control, and most of them were too freaky looking).