C23 Harley Dyna Superglide Rear Fender 1999-2001 Fxd Oem Genuine on 2040-parts.com

AC Schnitzer shows off polizei-spec ACS4 2.8i Coupe

The Essen Motor Show is underway. Essen is Europe's version of SEMA, with hundreds of tuning companies showing their wares. And for this year's event, BMW tuner AC Schnitzer has rolled out its version of the 2014 4-series, dubbed the ACS4 2.8i Coupe, in polizei spec, no less.

BMW M135i Concept heading for the Geneva Motor Show

The BMW M135i Concept is heading for Geneva BMW are taking the first petrol-engined car in its new M Performance range to the 2012 Geneva Motor Show – the BMW M135i Concept. It looks like BMW are going to be rolling out their new sub-M range of cars across the entire BMW range. We’ve already had the big diesel bruisers of the new M Performance Range – the M550d, X5 M50d and X6 M50d – revealed ahead of Geneva – and news of the M Performance Parts for the 1 Series.

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.