Porsche 914 Air Cleaner/filter Assembly W/ Snorkel on 2040-parts.com

Porsche 911 GT2 RS (2010) first official pictures

You’re looking at the new Porsche 911 GT2 RS, not just the most powerful 911 that Porsche has ever built, but the company's most powerful road car period. The output from the GT2 RS’s twin-turbo flat six? 611bhp – 88bhp more than before. And as the new GT2 RS – there will be no ‘regular’ GT2 version – weighs 70kg less than its predecessor, that wholesome 611bhp provides this rear-engined monster will a stunning 446bhp/tonne.

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.

Honda NSX supercar (2013) testing on video

The new Honda NSX isn’t just motor show fantasy: it’s headed for production, and here’s the first image of the hybrid supercar in testing. This very NSX prototype will lap the Mid-Ohio Sport Car Course racing circuit in Ohio, USA, ahead of the Honda Indy 200 IndyCar Series race on 4 August 2013. It’ll be the first time the new NSX has turned a wheel in anger in view of the public, as it gears up for a showroom debut in 2015.