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

Alfa Romeo 4C spied in Michigan

During the Detroit auto show in January, Fiat and Chrysler CEO Sergio Marchionne told us -- in his own irreverent way -- that arrival of the long-promised Alfa Romeo 4C would be delayed once again. But as these spy photos show, testing on the sporty coupe continues even as a debut date remains elusive. This isn't the first time we've caught the 4C testing in the States.

2015 VW Jetta makes global debut at New York auto show

The 2015 Volkswagen Jetta is making its global debut at the New York auto show, and the changes for the new model year -- while not exactly breathtaking -- should help VW's volume-seller keep up with the competition. That includes the likes of the 2015 Chevrolet Cruze and 2015 Ford Focus, which are also showing off refreshes in the Big Apple. To start, VW says the mildly redesigned front fascia reduces drag (and gives a “wider and more substantial look” to boot!) with a new bumper and air intakes.

Audi Sport Quattro Concept arrives on video

It does seem almost a certainty that Audi are planning on building a production version of the Audi Sport Quattro concept we saw at the Frankfurt Motor Show last month. After all, Audi has already had one stab at a high-end recreation of the iconic quattro in 2010, turned up at Frankfurt with a second, more powerful, version and has now got that version running around on video to celebrate 100,000 Facebook Likes. If Audi are going to build the Sport Quattro it’s almost certainly going to be a limited edition run at a price that eclipses even the current range-topping Audi R8 V10 Plus.