>>28570305
Whilst we're on Aprilia, I'm going to nominate the RS Cubed: the most powerful engine in motoGP that season, recorded the highest top speed in testing; but had a poor chassis with no front end feel and very early traction control and ride by wire which made it uncommunicative and unpredictable to ride. Colin Edwards called it "born bad" and teammate Nori Haga crashed it 28 times.