Allison Shift Selector 23048153 New (sku #517 / D 1-6) 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.

M25 speed cameras not switched on

Most speed cameras on the M25 have not worked for five years, according to a report in the Sunday People newspaper. Of the 117-mile stretch of London’s orbital motorway, only 3.2 miles between Junctions 2 and 3 in Kent is covered by working cameras. On Bing: see pictures of speed cameras Cars most likely to be caught speeding in the UK The cameras, which sit behind overhead gantries imposing lower speed limits during congested times, haven’t been switched on since they were installed in 2009.

Polestar boosts Volvo power with factory software upgrade

Volvo and its performance arm Polestar have developed tuning software for C30, C70 and S40 cars fitted with the T5 turbocharged engine. It increases power by 23 hp and torque by 29 lb-ft by revising valve and spark timing. The software is compatible with 2008-model-year and newer cars and goes on sale on Nov.