What rules does the country of Belgium impose on historic rallying? Very few. That is, as long as you use the original crankcase, you can do whatever you want. That means things like a 3.5-liter, 365-hp flat six in a Porsche 911 rally car.

On this week's Chris Harris on Cars, Chris drives a bonkers Tuthill 911 historic rally car. And thanks to the Belgians, it's only 2,204 lbs and has a dog box. The result? Many, many three-wheeled drifts and a "lovely collection of noises."