Mikuni Carburetor Main Jets 340-400 X2. Arctic Cat Snowmobile on 2040-parts.com

One Lap of the Web: Metal Machine Mazdas

-- Someday, for some reason, you might find yourself in Jaworzno, Poland. And if you're there, you might drive down Grunwaldzka and make a right on Krolowej Jadwigi (we've never been to Jaworzno, actually) and end up at the Jeff Hanneman Circle Pit, a roundabout named after the late guitarist from Slayer and, therefore, the most badass road junction in the universe. The traffic circle could -- and should -- also double as a demolition derby for FSO Polonezes.

Buick duplicates toughest roads in the world for virtual testing

Buick is cloning real-world roads so they can be used to virtual test cars. Engineers use cameras and a laser to scan the road surface and to create a three-dimensional virtual copy. Buick has used this system to replicate the road leading to the Cerro del Cubilete shrine in Mexico.

Aston Martin creates three special-edition DB9s

Aston Martin has designed three special-edition DB9 models named Carbon Black, Quantum Silver and Morning Frost. The Carbon Black and Quantum Silver models are both sport editions with a six-speed Touchtronic II automatic transmission and a remapped sports exhaust that provides a more evocative sound, the automaker said. Both cars come equipped with 19-inch, black 10-spoke wheels, a black grille and graphite tailpipes.