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

Ultrarare, never-raced Lamborgini Diablo GT-R hits the market

Any Lamborghini is a special acquisition, but for those who desire true exclusivity in an exotic-car purchase, we present the Lamborghini Diablo GT-R. The GT-R is a track-only variation of the exclusive, street-legal European-only Diablo GT. This is not just your garden-variety Diablo GT-R.

Porsche 911 GT3 R Hybrid (2011) first official pictures

Porsche has released details of its updated 911 GT3 R Hybrid – the 2010 original nearly won last year's Nurburgring 24hr race before (ironically) it retired with petrol engine failure.  The 2011 Porsche 911 GT3 R Hybrid – the lowdown Before this report disappears in a chorus of ‘it looks the same as last year’s one’, let's outline where Porsche’s engineers have been busy. At the unfashionable end of the car remains a 4.0-litre flat-six engine producing approximately 470bhp. Up front are twin electric motors, now producing 75kW of power each (up from 60kW) and combined these give the GT3 R Hybrid a 197bhp electric boost, which can be programmed to activate automatically via the throttle pedal, or manually selected during overtaking. F1-derived hybrid tech for the 911 GT3 R Hybrid Power for the two electric motors doesn't come from batteries, but flywheel accumulator technology from Williams Hybrid Power, an offshoot of the Williams Formula 1 team. The flywheel, encased in a carbonfibre safety cell in the space where the passenger seat would be, spins at up to 40,000rpm and acts as a mechanical energy store for the electric motors. Regenerative braking feeds energy back into the flywheel system – no surprises there, as the technology is derived from Williams' exeprience with Kinetic Energy Recovery Systems (KERS) in F1.

BMW M5 celebrates 30th birthday, promises a surprise

The BMW M5 has been with us for 30 years. That's right: The E28 premiered in the fall of 1984 as a 1985 model after its debut at the Amsterdam Motor Show. Even though its performance figures have aged somewhat (in the best way possible), it's important to remember that it was the fastest production sedan in the world when it premiered.