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?
Polestar 4 SUV spied – Porsche Macan EV and Tesla Model Y rival finally gets a back window