(Discovery Channel magazine series, 2003-)

Episode 7.01 Demolition Derby
The Mythbusters team look into the science of driving the GM 'Fishbowl' shown in the feature film Speed. There's a glimpse of the bus in the film, 2525:

….followed by a Corgi model 'Fishbowl':

The full size guineapig is this, fleet number 5285:

Seen from outside, it's christened the 'Mythbus'! When they get to driving and steering it at 50mph, they tip it over: