This service initially used Leyland Leopards, and latterly Leyland Tigers, and was one of four "airport network" service connecting Gatwick, Heathrow, Luton and Stansted with Central London.
The service in question used Leyland Leopards for its initial operation before transitioning to Leyland Tigers. It was one of four airport-focused transportation networks that connected Gatwick, Heathrow, Luton, and Stansted to central London.