From Todd Halterman, here is the story of one elaborately hot-rodded Vespa P200:
Mike Taylor, the Majordomo at Taylorspeed in St. Louis, Mo, got out the toolkit and did a full restoration (with the help of English Tooth Racing) of this amazing Vespa which puts out a startling 30hp.
So how do you get that kind of juice out of a tiny Italian motor?
You include a little nitrous. That’s right, a nitrous-enhanced Vespa.
To put that into perspective, a brand new Royal Enfield Bullet 500 makes only 27 hp, and weighs nearly 200 lbs more than a Vespa P200. So without a doubt, this little bike should haul! Word is, Mike and his crew are working on a 40 hp motor next.
Source: Motorcycle Insurance