Actually, that's an old one too. Saw it about 8 or 9 years ago on Russian TV (NTV), the only difference being only one couple at a time, filmed at a TV studio. They also had erotic ballet dancers there and a special or unusual car every show. It was hosted by a guy, who is a showman and also a racing driver.
Later he hosted a show, where 2 groups of 4 people had to escape police chace in Moscow for 30 minutes, while their cars were equipped with a GSM positioner. That was also a nice show, with real police chaces. Cameras were both in the escaping cars and in police vehicles (there were 6 of them). The winner took the car (Daewoo Super Racer
).
Here in Israel we have a show that I have yet to see on other TV channels, where couples compete in different tasks, both logical and physical throught the country. Every couple gets a jeep for the task, and the prize is a 4 room apartment.