Jeremy went all green! Diesel cars are well known for their brilliant fuel economy. That's why the Americans refuse to drive them. So we wondered just how good is a diesel engine? Could Jeremy drive an Audi A8 all the way to Edinburgh and back on just one tank? It sounded absolutely insane. Even Audi laughed at us when we told it what we were doing. "Zis car can't go 800 miles on one tank of ze petrol," the firm said.

We pitted a Street KA which had the best satellite navigation system we could find, against a professional homing pigeon. The result? Well, let's just say the pigeon looked very smug.

On the whole, sport involves a lot of running around and getting hot and sweaty. There's only one sport that requires absolutely no physical prowess at all: darts. So we thought: how can we work a game of darts into Top Gear? The answer was simple. We replaced the fat, beer soaked, tattooed arm with a pneumatic cannon, and the darts with cars. Hey, presto! Car Darts. Just don't ask why.

First shown on: 30/05/2004