Actually there is a competitive claim to this shopping cart speed genre:
Built by: Matt McKeown
Base vehicle: Chinook helicopter
Record speed: 74.194mph [119.404kph]
Fancy a high-speed trip to the shops? Look no further than this mishmash-mesh hybrid, which uses a modified starter motor from an army helicopter to produce 400lbs of jet thrust.
Built by McKeown in just three weeks at a cost of £4,000, it is stabilised with go-kart wheels and – rather precariously - by the 54-year-old rider hanging his butt of the back.
McKeown said: "I have a compulsion to take mundane but iconic objects and see how fast I can make them go. Standing on the back of a jet shopping trolley at 75mph looks silly but it’s the best place to be if it goes wrong.”
http://www.redbull.com/en/motorsports/stories/1331753253830/meet-the-real-life-whacky-racers
