for Analogue carry the DC current from the controllers, or for Digital have constant AC current passed through them, in either case picked up by two metal braids or plates on the underside of the racing cars. TV and film licensing Since the 1960s, Scalextric have offered TV and film tie-ins, beginning with the now rare and valuable James Bond 007 set, featuring an Aston Martin with action features as shown in the film Goldfinger. Even the 'baddie' car in this set, a Mercedes, had action features of its own, whilst the set also sported many other unique action points and props. It was some time before Scalextric returned to licensing in the 1970s, first with The Amazing Spider-Man (the 1970s series), which had specially liveried TR7 cars and white track. Then, in the 1980s, came the original TV series based Teenage Mutant Ninja Turtles, Power Rangers, Knight Rider and then Tim Burton's Batman film. Since then the franchises have grown to include Batman Begins, The Simpsons, The Transformers movie, James Bond 007 films Quantum of Solace, Skyfall, GoldenEye and Spectre, Starsky and Hutch, The Italian Job (models from both the original and re-made films), Top Gear, Star Wars and the Pixar/Disney movie Toy Story. Many of these have appeared in both 1:32 and 1:64 scales. Scalextric also produced a Dukes of Hazzard General Lee car and more recently a twin car pack with licensing from the Fast and the Furious film franchise. Scalextric has also recently licensed the Need for Speed brand from Electronic Arts and has produced a set based on the popular video game series. On 22 November 2004, thieves stole 2,500 Simpsons Scalextric sets from the back of a lorry which was parked near services on the M2 motorway in England. Vehicles In addition to various types of cars, Scalextric vehicles have included motorbikes, sidecars, go-karts, pickup trucks, SUVs, racing trucks, articulated trucks, horses, skateboards and bicycles. Track Standard track consists of straights of various lengths and corners of different radii and degree of turn. Special track includes several different styles of chicane, cross-over tracks, crossroad track and humpback bridge. Novelty pieces of track have included pit lane tracks, Le Mans start, blow-out track and loop-the-loop tracks. There are five generations of 1:32 scale Scalextric track: Original Scalextric Track (Mk. 1): This was made from rubber with thin, vertical electrical connectors, and held together with separate