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

OnStar 'ignition block' disables stolen vehicles

OnStar, General Motors' in-vehicle safety and communications system, has launched a service to keep car thieves from starting a vehicle that has been reported stolen. As of July 20, three stolen cars had been disabled by the technology, called "remote ignition block." The feature is available on select 2009 and 2010 GM models. Subscribers must report their vehicles stolen to police officials and request assistance from OnStar, which then sends a signal that prevents the car from restarting.

Porsche shows off 911 RSR for World Endurance Championship

Porsche is celebrating the 50th anniversary of the 911 this year with several events including the Retro Classics show in Stuttgart, Germany, an exhibit at the Porsche Museum and honored marque status at the Pebble Beach Concours d'Elegance. Porsche also went racing with the new 911 RSR in the first event of the World Endurance Championship this weekend, and has posted a clip on its YouTube channel. The 991-based Porsche 911 RSR houses a 4.0-liter flat-six making 460 hp with a new six-speed sequential transmission with paddle shifters.

Cyclists 'revel in car-free streets'

THOUSANDS of cyclists have enjoyed the chance to ride on car-free streets during a series of bike rides around the country. The Space for Cycling Big Ride saw people of all ages take to their bikes in London, Birmingham, Bristol, Leeds, Manchester, Newcastle and Sheffield. Organisers estimated 5,000 cyclists took part in the event in the capital, where 30 guided rides took place under bright sunshine.