GM reveals new 4.3-liter V6 EcoTec3 truck engine specs and details

The Motor City truck wars are hotter than ever with Ford, Ram and GM each recently revamping their pickup lineup. The most recent contender: GM's redesigned Chevrolet Silverado and GMC Sierra. In addition to new exterior designs, a new engine -- the 4.3-liter EcoTec3 V6 -- will be available to complement V8 options.

McLaren 12C Can-Am at Pebble Beach

A (currently) one-off McLaren MP4-12C – the McLaren 12C Can-Am – is heading for Pebble Beach, previewing a track-day MP4-12C. The McLaren MP4-12C is a one-off track-focused MP4-12C, developed by the same McLaren GT team which developed the MP4-12C GT3 race car, and its heading for Pebble Beach this month to tempt US track-day enthusiasts. Developed without the constraints of a racing series, the 12C Can-Am is based on the GT3 car and adds a new aerodynamic package – which improves downforce by 30 per cent – with a carbon fibre splitter with little winglets atop, a huge rear tray of a spoiler and a carbon fibre diffuser.

Mercedes A45 AMG: Geneva Motor Show 2013

The Mercedes A45 AMG – Mercedes first proper ‘Hot Hatch’ – has been revealed at the 2013 Geneva Motor Show. On sale July 2013. The makeover from regular A Class to A45 AMG is relatively subtle by hot hatch standards, but its enough, with its more aggressive body kit, big alloys, red callipers and tail pipes to make you realise the A45 means business.