Holley Performance 0-80592s Supercharger Carburetor on 2040-parts.com

Historic Roper steam-powered motorcycle at Las Vegas auction - Autoweek

In September we told you about one of the world's oldest four-wheeled machines going up for auction at an RM event. In January 2012, the perfect companion piece to that $4.6 million horseless carriage is being sold--a 1894 Roper Steam-Powered Runabout motorbike. The Roper bike is the second of two built by Sylvester Roper of Roxbury, Mass., and is regarded as one of the world's oldest, predating the earliest Orient, Indian and Harley-Davidsons.

Now Porsche catches the SUV Coupe bug with plans for a Cayenne Coupe

Porsche are planning a coupe version of the next Cayenne (current Turbo S pictured) No one thought the BMW X6 would sell; after all, who would want an SUV with a compromised coupe roofline? But it seems plenty of buyers do – the BMW X6 sells at twice the rate BMW predicted – which is why we’re getting an X6 clone in the new Mercedes GL Coupe – likely to be the Mercedes MLC – heading for a Mercedes showroom near you sometime soon after being previewed by the Mercedes Concept Coupe. Now, Porsche are apparently playing the SUV Coupe game with plans for a coupe version of the next generation Cayenne in 2018, according to Autocar, to make sure BMW and Mercedes don’t have things all their own way.

Festival of Speed: onboard with David Coulthard up the Goodwood hill

If you’re able to arrive early enough on Thursday for Goodwood’s Moving Motor Show you might just be able to book yourself a slot to drive up the famous hillclimb course with one of the many manufacturers displaying their cars. Few mere mortals get the opportunity to drive up the hallowed tarmac at Goodwood – it’s more often reserved for F1 aces and motorsport heroes, such as a certain David Coulthard. In this video from Mercedes-Benz, DC takes us on a guided tour up the hillclimb, corner by corner behind the wheel of a suitably glam Merc SLS Black Series.