The second part of the boys' African special, in which they try to discover the source of the River Nile.
Jeremy, James and Richard set out to discover the definitive source of the River Nile. In the past many explorers have claimed to have done just that, but were unlikely to have done it in three estate cars.
If you thought Britain's Pensioners needed a car designed especially for them, it's unlikely that you would think Jeremy and Richard were the men for the job. However, someone did think the Pensioners of Britain needed such a car. And it probably was Jeremy and Richard because tonight, that's exactly what they do with the help of some brave members of the elderly community. James May, 50, drives the new Range Rover. James McAvoy, 33, is the star in the Reasonably Priced Car.
Jeremy drives the Kia Cee'd. Not in a fast lap around the track, but in a proper road test. If, indeed, a 'proper' test includes the American police, a rock legend, some eels and James May... As a consequence of finishing last in the race to the Mexican border in Episode 2, Richard tests the Mastretta MXT. A Mexican car. In Mexico. How hard can that be? Lewis Hamilton is the F1 Star in a Reasonably Priced Car.
Which is the quickest mode of transport to get you from Wembley stadium in London to the San Siro stadium in Milan? Jeremy believes it's the car - specifically the Shelby Mustang GT500 - and 'the other two' believe the European rail network will do the job. This sounds very much like one of Top Gear's famous races. And indeed it is. Back home, on the track, Jeremy slides, spins and shouts 'power!' (probably) at the Toyota GT86 and Amy Macdonald is the Star in a Reasonably Priced Car.
This week the boys are in the western United States. Travelling from Las Vegas to Los Angeles via Palm Springs, they make their journey in three front-engined supercars: the Lexus LFA, Dodge Viper and the Aston Martin Vanquish. The trip involves a race against the police and a dash to the Mexican border, where the last man to arrive faces a 'terrifying' penalty. Mick Fleetwood is the Star in a Reasonably Priced Car.
The long wait is over. The boys are back. And it's straight down to supercar business with Richard driving the £800,000 Pagani Huayra. James, rather appropriately, is in a Bentley Continental GT. Rather inappropriately, he takes it rallying. Meanwhile, Jeremy, the word's tallest motoring Journalist, tries to build the world's smallest car. Damian Lewis is the Star in a Reasonably Priced Car.
Presented by Richard Hammond and The Stig, this special examines the best of the Bond cars to celebrate the film series' 50th anniversary and the release of Skyfall.
Can you go motor racing for less than it costs to play golf? A question no sensible person has ever asked. This week, Jeremy, James and Richard see if you can go motor racing for less than it costs to play golf... Richard is on track duty this week with the new twin-turbo, V8-powered BMW M5 and James drive a Ferrari 250 GT California. Kimi Raikkonen is the F1 Star in a Reasonably Priced Car. Slash is the Star in a Reasonably Priced Car.