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

Vauxhall VXR8 & SMART for-two CDI take MPG Marathon honours

Vauxhall VXR8 & SMART for-two CDI take MPG Marathon honours On the face of it, it’s reasonable to expect a car as small as the SMART for-two CDI to be capable of astonishing economy if driven in a certain way. And the ALD Automotive / Shell FuelSave MPG Marathon, run last week near Cirencester, proved exactly that, with a SMART driven by Mick Linford and co-driver Ella Flynn managing to use less than four gallons of diesel to cover the 370 mile route. That means the SMART fortwo CDI averaged 99.24mpg on the route on real roads, an improvement of 16 per cent on the official combined figure of 85.6.

Porsche celebrates 50 years of the 911 at Pebble Beach

Seven generations across 50 years; nobody has ever matched what Porsche has done with the 911. What started out as the Porsche 901 quickly became the 911 – and wouldn’t take long to become a legend. As one of the most accomplished road-going supercars ever created, it's easy to see why the 911 is also a consummate champion in the motorsport arena – and to celebrate that fact, at Pebble Beach 2013 there was a huge array of road and race 911s, courtesy of Porsche itself along with a stack of private owners.Click through the gallery to see our pick of these great cars...

Skateboarder Rob Dyrdek kick-flips a Chevrolet Sonic for ad

Professional skateboarder and MTV star Rob Dyrdek did something with a Chevrolet Sonic on Saturday that's never been done before: a kick flip. That's what they call it when a skateboard, or a car, corkscrews off a ramp, landing back on four wheels. The stunt was part of a Chevrolet ad campaign that started with the new hatchback driving out of a plane with a parachute like a skydiver.