The Mach 1.4 is a racing car that was featured only in The New Adventures of Speed Racer.
The Mach 1.4 is a Formula 1 racing car that was driven by Speed in the final trials of the Fontana 500 at the beginning of The Mach-5's First Trial. However, because of Axel Ripley's dirty driving, Speed had to wreck it on the side of the track after a forced spin-out to prevent an accidental collision with several other racers.
- Despite the name, it is of no relation to the Mach 1, due to being a vehicle from a different continuity.
- It had a similar color scheme to the Mach 5.