Great vid wasn't it. But Leon had far more speed, he was showboating so they would stay in the same shot. Having said that (and I have both cars and bikes) you can shape the debate anyway your want. If you take outright circuit lap records F1 takes everything including MotoGP (that's downforce and cornerspeed for you), although up to a certain speed a MotoGP bike can accelerate with an F1 car. Then look at Superbike vs say Touring Car (much closer) and so on.
Out on the road, unless like track conditions most bikes are real world faster;smaller, better power to weight etc. But if it rains!
What we need are some more head to heads on 5th Gear; how about, say Takuma Sato in a Nissan Skyline vs Nori Haga on the original R1, and what about going back a few years; RS Cosworth vs Fireblade anyone. Gentleman start your engines!
And finally here's a shout for VBH!