Ever been in a car dealership and David Beckham has driven past in his Rolls-Royce and waved out of the window? Me neither, until this afternoon. An unusual event, perhaps, but then the Hornburg Jaguar Land Rover dealer on Sunset Boulevard is not your usual car dealer.

Hornburg is the JLR dealer where the rich and famous go to buy their cars. The lead singer of the Scissor Sisters was in just before me this afternoon to buy a Jaguar XKR just two days after passing his test. Beckham is a regular (an XKR and a Range Rover Autobiography Supercharged are his current JLR steers), as are Denzel Washington, Gordon Ramsey and Simon Cowell. A few years ago, Brad Pitt picked up Range Rover Sport Supercharged the day after turning up to the Oscars in a Toyota Prius.

Martin Dodsworth is the general manager of the Hornburg dealership. He moved here from a JLR dealership in Nottingham seven years ago and, ahead of the Los Angeles motor show, he described to me a car buying process that is a world away from the system we know in Britain.

“Buyers here want instant gratification,” Dodsworth explained, “so if the car can’t be delivered to their house by 5pm later that day then they will go and buy from somewhere else that can.”