This is Honda's Mean Mower, the new world record holder for fastest lawnmower, at 116.57MPH.
"To claim the record, the lawnmower had to run through a 100-meter speed trap, and it had to make two passes in opposite directions within an hour with the average taken between them.
The Mean Mower is based on a Honda HF2620 Lawn Tractor that's been modified by British Touring Car Championship squad Team Dynamics. It has a newly fabricated chassis from 4130 chromoly steel and packs a 1.0-liter engine from a Honda VTR Firestorm motorcycle with a six-speed sequential gearbox. The engine produces 109 horsepower and 71 pound-feet of torque - enough power to reach 60 mph in around four seconds. The suspension and wheels come from an ATV, and the cutter deck has been remade in fiberglass. The grass bag holds the fuel tank, oil cooler and secondary radiator. The engine no longer actually cuts grass. Instead, the blade is driven by two electric motors"
+ More >>