In all, it took 10 months, more than $15,000 and countless headaches to bring "Project Whirl" to life. And getting the other parts together was a feat in itself. Fortunately, Polaris donated the RZR out of curiosity to see what would become of it in Carnett's workshop. He got parts such as the roll cage, suspension, wheels, tires and lights gratis too. He also had to spend hours on the phone with anyone he thought could help propel his invention to the next step. "I would go through 20 or 30 days at a time of total failure," Carnett says, like the time he used the wrong hydraulic fluid, causing the starter motor to blow up. Eventually someone instructed him to use automatic-transmission fluid instead because it's much thinner and better suited to a jet engine.