Read the news story and John's blog as it happened.
Henry Catchpole sneaks around the pits here.
This mystery Porsche 911 GT3 has something no GT product has had before
Ariel Atom 4RR review – is the most powerful Atom ever worth McLaren 750S money?
Ferrari 849 Testarossa Spider review – 1035bhp drop-top takes on the Lamborghini Revuelto