Ep. 9: Speed Enters the Dangerous Great Alpine Race Despite Warnings from Sparky and Racer X
Aired on May 28, 1967

Speed competes in the perilous Great Alpine Race after a challenge from Snake Oiler, a stunt driver affiliated with the Car Acrobatic Team. The extreme risks of the mountain contest provoke strong objections from his crew chief, Sparky, straining their relationship to the breaking point. Even Racer X, also known as the Masked Racer, advises Speed to avoid the event. Compounding these interpersonal conflicts, Speed faces significant mechanical challenges as Pops becomes severely ill while attempting to prepare the Mach 5 for the competition.
Episodes
- Ep. 5 · Speed Racer encounters Racer X while pursuing a stolen Model T linked to a hidden gangster fortune.
- Ep. 6 · Speed evades Blaggard, reveals treasure location, and rescues Mr. Clepto with help from Racer X.
- Ep. 7 · Inspector Detector investigates stolen gold while Racer X defends against motorcycle attackers.
- Ep. 8 · Speed and Trixie escape the Mammoth Car drivers and confront Cruncher Block at his mining tunnel headquarters.
- Ep. 9 · Speed Enters the Dangerous Great Alpine Race Despite Warnings from Sparky and Racer X
- Ep. 10 · Speed faces a deadly mountain curve and treacherous chasms during the dangerous race
- Ep. 11 · Speed survives with concussion and blindness while Racer X fakes injury to help him.
- Ep. 12 · Speed encounters a mysterious car linked to the Three Roses Club's past victim during a test session.
- Ep. 13 · Lilly drives the rebuilt Melange to target the Three Roses Club members