89-97 Suzuki Katana 750 Front Wheel Rim Axle Pivot Bolt Nut on 2040-parts.com

Ferrari video of the next Enzo's HY-KERS hybrid

Ferrari has issued video of its new HY-KERS hybrid system bound for the new Enzo successor due later in 2012. It mates a V12 petrol engine with a brace of electric motors - one to drive the car's ancillary systems like cooling and power assistance, and the larger one to drive the rear wheels. This teaser video doesn't give away any incredible performance figures, but it does afford a glimpse into Maranello's thinking for its new hypercar.

Mercedes S-Class Plug-in Hybrid revealed for Frankfurt 2013

We’ve driven the new 2013 Mercedes-Benz S-Class already this year (and loved it), but now the ‘best car in the world’ has added another feather to its cap. The German firm has released details of a super-high efficiency version of its S-Class saloon called the S500 Plug-in Hybrid, ahead of the car’s debut at the 2013 Frankfurt Motor Show next month. It goes on sale in the UK in 2014, and its vital statistics are absolutely astonishing.

Audi RS5 TDI Concept gets electric turbo and 380bhp

The Audi RS5 TDI Concept (pictured) gets an electric turbo It’s two years since Audi revealed it was working on an electric turbo to be used in a twin-turbo setup, with the electric turbo able to offer boost pressure from much lower down the rev range than a normal turbo. That has turned in to the Audi RS5 TDI Concept, where Audi has replaced the normal RS5‘s V8 with a 3.0 litre TDI engine with a small electric turbo for low rev work and a bigger turbo to do the higher rev stuff. The electric turbo works from the off to provide maximum torque of 553lb/ft from just 1250rpm, before the bigger normal turbo takes over at 3,000rpm to continue the boost.