A toilet, which a team of young students had rigged out with wheels and an old motorcycle engine, has reached a top speed of just over 70 miles per hour (113.5 kph), breaking Britain's speed limit for cars.
A shopping trolley, mounted on go-cart wheels, did 91.55 mph (147 kph), with its maker, 59-year-old engineer Matt McKeown, clinging on as he straddled its jet engine.
Fastest of all was a shed, which topped 100 mph at the time trials on the runway at an airfield in Elvington, North Yorkshire.
Straightliners, the motor sports company that organised the event, said all three had set new world records.
