Behind the scenes of the Euro NCAP stars and how their crash tests are done.Tim checks out the Piaggio MP3, a three wheeled scooter.Tiff and Jason decide which is best — the new BMW Z4 Coupe or the new Audi TT.Vicki gets a lesson from Terry Grant on how to drive on two wheels in a car.Jonny Smith travels to the General Motors test facility in Germany to find out how car manufacturers test airbags by becoming a live test dummy.Tom tries to pull a Boeing 747 with a stock Volkswagen Touareg, at the Top Gear test track and the plane from Casino Royale incidentally.