Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Porsche 911 GT3 RS 4.0 (2011) first pictures and video

This is the new Porsche 911 GT3 RS 4.0, a 493bhp race car for the road. Think of it as the ultimate 911 – it brings together the brilliant chassis of the GT3 RS, the lightweight secrets learnt on the GT2 RS, and the stonking 4.0-litre six cylinder engine that powers the GT3 RSR racer. This Porsche 911 GT3 RS 4.0 sounds like quite a package… It is, and topping the list of impressive highlights is a new 4.0-litre flat-six engine.

Next Dodge Viper will shed some rough edges

Little by little we're getting a clearer picture of the next-generation Dodge Viper SRT10. During a conversation with Dodge boss Reid Bigland at the Los Angeles auto show, Bigland told me the redesigned Viper "will appeal to a broader segment of the market." The car is expected to debut in 2012 but is not likely to appear at the Detroit auto show, he says. Today's Viper is essentially a street-legal race car.

Hyundai Intrado revealed before Geneva

The Hyundai Intrado crossover debuts next week at the Geneva motor show, but the company revealed some pictures and information about the car on Monday. The Intrado is the first concept produced under the direction of Peter Schreyer, who became Hyundai president and chief design officer last January. Hyundai says the Intrado demonstrates the company's belief that advanced vehicle technologies and intelligent design can combine to engage with drivers and passengers.