"367mph" jet-powered school bus

Couldn't find any other links or posts about this so thought I would amuse with this link.

http://www.telegraph.co.uk/motoring/news/7927775/Motoring-enthusiast-builds-367mph-bus.html

I guess this is entertaining on some level, a school bus fitted with a true jet engine to it. But I'm thinking that 367mph claim is in theory, right? And theory only. How would something shaped like a wall not disintegrate going anywhere near that speed? Also, in the video it doesn't appear that he even approached half that, if sight-guessing is worth anything.