The Bugatti Chiron is extremely fast as well. However, C5 Blast did give a tough competition to Bugatti Veyron and Chiron. The Bugatti Chiron is able to cover a significant distance in 2.5 seconds. However, the Tesla Model S P100D can cover a significant distance in 2.28 seconds also. 

The DC motor contributed to the speed of the go-kart. The brushes and Electric Ducted fans have played an important role in contributing to the speed of go-kart. The motors are however powered using twelve 5000mAH batteries. 
https://businessupside.com/2021/03/24/most-expensive-go-kart-in-the-world/