This is aimed, more or less, at the Can-Am Spyder, which is selling pretty well to mostly old duffers who no longer have the confidence for wrestling an 800lb touring motorcycle around.
With 0-60 in ~4.5 and ~12 second quarter mile times, it's hardly a slug. Doing that with no doors and your arse only 5" off the ground, is very different experience that doing it in a two tonne car.
I'm still on the fence about them, but I can see the appeal.