A battery-powered supercar? Such a thing does exist; it's called a Tesla and Jeremy drives it on the track. James also forsakes the petrol engine this week to drive the hydrogen-powered Honda Clarity in California.

A battery-powered supercar? Such a thing does exist; it's called a Tesla and Jeremy drives it on the track. James also forsakes the petrol engine this week to drive the hydrogen-powered Honda Clarity in California.

Did Communists ever build a good car? A question literally several people have asked - ever. To find out, Jeremy and James go to the former American airbase at Greenham Common in England to drive some of the best examples still working...just.

The 40th birthday of the Ferrari Daytona is celebrated in true Top Gear style - with a race. Richard, driving the Daytona, will race James, who is in a power boat, from Portofino in Italy, to St. Tropez.

This week's challenge is to drive from Basel in Switzerland, to the north west coast of England. This must be done on just one tank of petrol - no splashing and dashing in France, just one tank. The first to arrive - if any do - gets the honour of switching on Blackpool's illuminations.

Finland has produced some of the finest drivers in both Formula 1 and rallying. James travels to the country and meets Mika Häkkinen to try to find out why this is so. Richard travels farther afield - to Japan - to drive the Toyota iReal. Which is not so much a car, as a chair with wheels.

They have never been too fond of American cars on Top Gear, so maybe a trip from San Francisco to the Bonneville salt flats in Utah, driving American muscle cars will change their minds. James drives the Cadillac CTSV, Jeremy drives the Corvette ZR1 and Richard drives a Dodge Challenger, which he had to buy because Dodge wouldn't lend one to them, as they are always rude about their cars.

You would imagine, quite rightly, that Jeremy, James and Richard know very little about lorries. That hasn't stopped each of them buying a second-hand lorry and entering the world of the HGV driver.