I have watched a few lawn mower drag races in my day. The things can be surprisingly fast when they are hopped up well enough. An American dude named Bobby Cleveland has set a new lawnmower speed record taking the title back from Brit Don Wales.
Cleveland previously held the record at 80.833 mph and Wales took that record from him with a run of 87.833 mph. Cleveland decided to take the record back and set about building himself a new mower. The American wanted to hit 104mph and didn't quite make it.
Taking the mower to the Bonneville Salt Flats Cleveland hit 88.944 on his first run, breaking the existing record. He went back out and crushed the record with a top speed of 96.529. It's worth noting that he rules say the mower must actually be able to cut crass.