Read the news story and John's blog as it happened.
Henry Catchpole sneaks around the pits here.
Aston Martin Vantage S review – does it offer enough to take on Porsche's 911 Turbo S
Citroën C5 Aircross review – quirky, honest SUV offering Range Rover comfort on a budget
The Porsche 911 GT4 Challenge is coming, and it might be the most confusing model ever