We've seen some pretty wild hillclimb machines over the years, but this has got to top them all. It's a quad bike that's been heavily modified to compete in hillclimbs throughout New Zealand, and it looks absolutely bonkers.
According to the Hillclimb Monsters YouTube channel, this quad started out as a Suzuki LT500R from the 1990s. Built and driven by Ian Ffitch, it now has a 140-horsepower 1000-cc inline four from a Suzuki GSX-R1000 superbike and a custom suspension system. Weighing in at just 485 pounds, it's a rocket ship on wheels. Top speed? A claimed 142 mph. For context, that matches the top speed of the last-gen Fiesta ST.
Perhaps the coolest feature is the aero. There are wings front and rear, with the front acting as a deployable air brake when Ffitch applies the brakes. Watch closely and you'll be able to see it in action. For a quad bike, it's otherworldly. It must be a blast to ride.