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

Test your car's audio quality with iTunes playlist

General Motors audio engineer Matt Kirsch, who did the sound work for the Chevrolet Cruze, has developed an iTunes playlist that helps drivers test their cars' audio quality. The “10 Songs for an Audio ‘Test Drive'” playlist includes: “Don't Know Why” by Norah Jones “Diamonds and Rust” by Joan Baez “No One” by Alicia Keys “Hotel California” by the Eagles “Boom Boom Pow” by the Black Eyed Peas “Rock That Body” by the Black Eyed Peas “Hide and Seek” by Imogen Heap “He Mele No Lilo” by Mark Keali'i Ho'omalu (from Lilo & Stitch) “Bird on a Wire” by Johnny Cash “Packt Like Sardines in a Crushd Tin Box” by Radiohead While “Boom Boom Pow” and “Rock That Body” should have accurate and powerful bass beats, “No One” and “Bird on a Wire” should feature clarity in the vocals. Kirsch's playlist is available for download at http://tiny.cc/c2ach.

Volvo 13-liter liquefied-natural-gas engine announced for North America

It comes as no surprise that, with rising fuel costs, companies are continuing their efforts to increase efficiency. Volvo Trucks, for its part, plans to launch a 13-liter liquefied-natural-gas engine for North America in 2014 and is set to develop a new form natural-gas fuel called DME, or dimethyl ether. Volvo looks to add the liquefied-natural-gas option to complement its compressed-natural-gas (CNG) offerings.

The Porsche 911: the car that shouldn’t work but does

Humanity might struggle perpetually with questions like the meaning of life, but it does know one thing for sure: rear engine cars are bad. Like a sling shot, the heavy engine at the back is always trying to overtake the driver in front. Anyone can understand that.Yet the Porsche 911 - one of the fastest cars on the market, and one of the most enduring in history - has its engine at the back.