The Vauxhall Astra GTC is more than just a three-door Astra. Major revisions to the chassis and UK-specific setup should make it a much more entertaining proposition. Read the review at http://www.autocar.co.uk/CarReviews/RoadTestsHistory/Vauxhall-Astra-1.6T-16v-GTC-SRi-180-/260175/

The BMW 6-series cabriolet was lavish if a little uninvolving. Is the mighty new 313bhp BMW 640d coupe a more rewarding driver’s car? Read the review at http://www.autocar.co.uk/CarReviews/FirstDrives/BMW-6-Series-640d-M-Sport/259491/

The Audi A6 Avant has always failed to match the obvious competition, but with newfound levels of comfort and finesse on offer in the saloon this new estate model could change that. Andrew Frankel tests the A6 3.0 TDI to find out.