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

Hennessey fills Z28 Camaro void with 562-hp HPE550

The 6.2-liter V8 in the 2010 Chevrolet Camaro SS cranks out 426 hp or 400 hp, depending on the transmission choice. But there are some people out there who want more. With a higher-performance Z28 Camaro from the factory on the back shelf as General Motors battles for survival, aftermarket tuners are ready to fill the void.

Mercedes S-Class Maybach spied (video)

The Mercedes S-Class Maybach hits the Nurburgring The new Mercedes S-Class is already starting to proliferate, with a wide range of engines, two wheelbases and the CL Coupe’s replacement – the new S-Class Coupe – already hitting the market. But Mercedes are far from finished extending the S-Class franchise, and we’ve got two more versions of the S-Class Saloon – the Maybach and Pullman – still to come, and the arrival of the S-Class Convertible still to come. And now it looks like the S-Class Maybach – effectively a replacement for the ill-fated Maybach brand – is getting closer to debut with this S-Class Maybach spotted testing at the Nurburgring.

CAFE standards set to rise to 54.5 mpg for 2025

President Barack Obama on Friday revealed ambitious plans to raise the corporate average fuel economy standard for cars and light trucks to 54.5 mpg by the 2025 model year, a landmark move that will dramatically remake carmakers' product portfolios and consumers' buying habits. Unlike the first CAFE standards passed by Congress in 1975, the Detroit automakers now publicly support the high requirements and have begun retooling their fleets to adapt the changes. “[This] represents the single most important step we've ever taken as a nation to reduce our dependence on foreign oil,” Obama said in a morning press conference.