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

Ironman Stewart retires, sells all

The off-road racing accomplishments of Ivan "Ironman" Stewart might never be matched: 82 major wins in desert racing, 17 of them in the crash-and-bang Mickey Thompson stadium series, three Baja 1000s and others too numerous to squeeze in here over a career that spanned 30 years. The thing that really sets him apart is that, while competitors shared driving duties over the long desert courses, Stewart did the vast majority of them alone, with no relief drivers--just him and the dirty, dusty desert. But even legends want to retire someday.

Urban gridlock costs economy £4.4bn

GRIDLOCK in urban areas is costing car-commuting households £4.4 billion a year, according to a report. Congestion in London accounts for £2 billion of the overall annual cost, the report by traffic information company Inrix and the Centre for Economics and Business Research (Cebr) showed. The report was compiled by studying congestion in the UK's 18 largest urban areas.

BMW 640d xDrive announced

On Thursday, Greg Kable waxed effusively about the new BMW M550d xDrive coupe, suggesting that it was the ultimate 5-series for everyday use. On Friday, Munich announced that the 5's two-door sibling will receive an AWD diesel variant: the 640d xDrive. While not quite as high-zoot as the 5-series' top oil burner, the 640d's 3.0-liter, twin-turbo straight-six cranks out a respectable 465 lb-ft of almighty torque between 1,500 rpm and 2,500 rpm, plus 313 hp at 4,400 rpm—numbers that, according to BMW, will carry the 6-series to 60 mph in 5.2 seconds.