Sounds a lot like the Ventures. The broadcast is interrupted by a news bulletin announcing that Tongue Blaggard, a convict at Songalong Prison, has escaped. Blaggard is the head of an unscrupulous organization known to have thousands of men throughout the world. He is thought to be hiding in the vicinty of Hightaxtown. Further on down the road, Speed and company encounter a Model T, which runs better than a clock.
Speed urges the old man driving the car to put the top up and offers to help.
The old man refuses his help, and by the time he finally gets the top up, the sun comes out. Later, Speed is driving the Mach Five in a clinic led by one of the greatest racers of all time, Fireball Rust. Rust is a real taskmaster, cutting no slack on his charges. We get a closeup of Speed's chance in the hot seat. Rust is all over him, but Speed seems to handle the pressure.