This Wazuma V8 was built by French firm Lazareth, and is the world’s most expensive quad bike and only one of it is made available for sale. The powerful racing machine is powered by a 250bhp Ferrari engine and a six speed gearbox, controlled by the handlebars from a BMW M3. It boasts a top speed of 150pmh. The one-off bike for approx. $262,238, a perfect splurge if you own a private racetrack!