I don't know the driver helmets, but its a TD Integra being driven (around MIRA?). Don't know if the car in the vid is pre-TD or post-TD.
Edit - just seen Gareth Howells URL on the front of the helmet...
''Funny, I've never coupled Leyland Paint with sexiness before. Wonder why.''...........''Because you've never seen the word 'Leyland' stretched across a big pair of breasts before?''