McLaren has just revealed a new viral video, featuring Lewis Hamilton and Jenson Button visiting a warehouse full of old McLaren F1 cars. I was told about this in Valencia. Apparently it was completely unscripted and while there were a lot of cameras in the building they were hidden away so that the drivers were able to forget they were there. This is fairly clear as at one point Lewis starts making engine noises while sitting at the wheel of Senna’s car. You couldn’t script that!