Ironically, it's use in cars (by the people driving them, not for performance) is probably a major reason it is being banned:

https://www.theguardian.com/uk-news/2023/aug/09/cardiff-cras...

I have the same question, the UK has a very well-known Drag Strip (Santa Pod). People all over Europe goes there, it's going to hit the track.

You may be thinking of nitromethane.