Bmw 128i Continental Tires And Asa Rims (4) on 2040-parts.com

Brabus upgrades Mercedes-Benz SL Roadster

German tuner Brabus has added the 2013 Mercedes-Benz SL Roadster to its stable of upgradable cars. The horsepower wizards from Bottrop, Germany, wrung 520 hp from the SL's 4.7-liter bi-turbo V8, which should be good enough for a top speed of 186 mph. The Brabus B20 PowerXtra module is responsible for the 85-hp increase and the 88 lb-ft of extra torque.

Sky takes Mazda powertrains to the next level

Mazda's next-generation of powertrains, called Sky, will feature a variety of new technologies that company engineers say improve fuel efficiency by 20 percent. The Sky engines--Sky-G for the gasoline version, Sky-D for diesel--coupled with a Sky-Drive automatic transmission or a six-speed manual, were offered for test drives during a technology day in Berlin. The Sky-G engine we drove was a 2.0-liter inline-four that made 160 hp and 155 lb-ft of torque.

Detroit Auto Show roundup

The 2012 NAIAS in Detroit, MI has proved to be exactly the dose of salts the US auto industry so desperately needed after a few very lean years for the event. Numerous concept and production cars made their debuts in the halls of COBO and, as ever, Car Design News was on hand to provide our in-depth live show coverage. Here's a full rundown of our reportage from NAIAS 2012: Acura Acura NSX Concept: Living up to the name Cadillac Cadillac ATS: Finally breaking into the premium mainstream?