Top Gear series 19, episode 5, BBC Two, review They seemed to be enjoying themselves too. "Isn't this absolute fun," said Barbara - although you couldn't help wonder if, by the time she found herself sharing a motorway layby picnic with her hosts, she may have been eating her words along with that soggy potted-meat sandwich. To cap it, there was even a sat nav voice-over provided by the late Richard Briers, which rightly received a warm round of applause. He had all the best lines, too - "Turn right at the new-fangled mini roundabout." Somewhere in between sending up the driving of past generations, the team found time for a look at those of the future. James May landed himself the enviable job of testing a brand-new £100,000 Range Rover over treacherous Nevada terrain. Better yet, he was racing through the mountains and swamps against a driverless car - the "Terramax," designed for ferrying resources to and from battlefield frontlines. Throw in swooping helicopter shots of the two behemoths ripping up the remote countryside and you had a petrolhead's dreamland (and, of course, an environmentalist's utter nightmare.) Disappointingly, the Terramax switched from automated driverless mode to "drone" (remote control) mode halfway through. But it didn't matter, because once we were back in the studio, Clarkson had bluntly told us that plans from Google to introduce commercial driverless cars are "utterly pointless." Not all of us can predict the future with that sort of cocksure self-confidence. But I'll have a go. As long as the BBC's money-spinner ploughs on, we'll never be far from a stereotype or a supercar. Thankfully, they're pretty good at it by now.