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

Porsche Panamera diesel owners can boost the fun with TechArt power upgrade

The German Porsche tuning haus TechArt revealed a power-upgrade kit for the Porsche Panamera diesel. While the 30-hp bump from the stock 250 horses to 280 won't light the world on fire, the 37-lb-ft jump in torque, from 405 lb-ft to 442 lb-ft, is sure to be a kick in the pants. The 0-to-60-mph time drops by 0.1 second from stock to 6.6 seconds, but the top end is up 3 mph to 153 mph.

Listen: Upcoming Ford Focus ST to employ sound symposer

While BMW employs a digitally sanitized/perfected sound file to give M5 owners the proper sense of aggro urgency when motoring at pace, Porsche went a little more organic with its employment of a sound symposer to feed the 911's flat-six growl into the cabin of the extra-refined 991. Essentially, the sound symposer is an electrically controlled diaphragm in a tuned sound tube that brings the proper engine noises into the passenger compartment. It can be opened and closed by the car's onboard electronics to offer snarl when you want it and serenity when you don't.

Vauxhall Insignia Ecoflex (2009) first pictures

By Ben Barry First Official Pictures 21 April 2009 13:20 Vauxhall has announced its answer to the planet-conscious Volkswagen Passat Bluemotion – the Insignia Ecoflex. Essentially the Ecoflex is a 158bhp 2.0-litre CDTi Insignia, but an army of now-familiar C02-slashing improvements have been swung into action. These improvements include under-car panelling and a lower ride height to help the Insignia cut through air more cleanly (the drag factor falls from 0.27Cd to 0.26), plus lower rolling resistance Michelin tyres.