Russell 661870 Adapter Fitting; Bulkhead Nut on 2040-parts.com

Geneva auto show: Mazdaspeed 3 set for debut

Hot on the heels of the recently introduced 2010 Mazda 3, the guys from Hiroshima are planning to show the performance-focused Mazdaspeed 2 version at the Geneva motor show in March. Details remain scarce, but the company has announced that the 2.3-liter direct-injection turbocharged four-cylinder will continue to power the range-topping model. No performance numbers were released.

Suburban Terror: Hennessey offers upgrade packages for GMC SUVs

Lest you think that Hennessey Performance Engineering will only tune up your Dodge Viper or Cadillac CTS-V, feast your eyes on this little number showing one of the company's souped-up SUVs taking on a 2011 Nissan GT-R. It's really an unfair fight: The Cadillac Escalade sports a 6.2-liter V8 which in stock form makes about 400 hp. But Hennessey, not looking for a beatdown, drops a twin-turbocharged 427 cubic-inch LSX engine with high-flow cylinder heads, intake and exhaust upgrades, a performance camshaft and a laundry list of other parts to bring the truck's output to 1,000 hp.

Mercedes-Benz handing off all V12 development to AMG

Wholly and verily, the Mercedes-Benz V12 in AMG tune is the most astounding motor Daimler puts in a car. Yes, the last-legs 6.2-liter 6.3 V8 is a hairy, wondrous beast. The diesel V6, with enough torque to shame a Buick 455, makes short business of long-distance travel, and the twin-turbo eights are nothing to sneeze at.