The dyno that [Jimbo] has built is a Prony ... and how that affects the Honda that he calls his “Street legal go cart.” Speaking of unusual power plants, how about plant some hobby sized ...

Here, the folks at DBR strapped Barbie's iconic pink Power Wheels Mustang to a dyno to see just how much power this bad boy is putting down (in face-melting Rabbit Mode!). Is it powerful?

Of course, this is merely one dyno session on one car. We'll have to wait until more 2015 GTI owners get on the rolling road to see if Volkswagen really was as conservative about its hot hatch's ...