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

One lap of the Web: $52 million Ferrari 250 GTO, Alfa Romeo Montreal for sale and more bizarro engines

-- Even as the hammer fell on Juan Manuel Fangio's $30 million Mercedes-Benz W196R, we knew that that car wasn't the most expensive one ever sold -- it was merely the most expensive car sold at auction. Other cars were reported to have traded for a bit more in private sales. But now we have word of a car that absolutely blows the sale price of Fangio's little Silver Arrow out of the water: a 1963 Ferrari 250 GTO that sold to an undisclosed buyer for $52 million.

Volvo Group plans wirelessly charged bus line

There's one bit of futuristic transportation technology that seems to get trotted out almost as often as autonomous cars, electric cars and flying cars: Inductive, or wireless, charging for city buses. It's not as sexy or as memorable as the perpetually out-of-reach commuter-grade Harrier jet, but it uses proven technology (GM's EV-1 uses inductive charging, as do electric toothbrushes) to save or eliminate fuel and to reduce emissions. And unlike the flying car, induction-charged buses are hardly fantasy: They've been used in European cities for over a decade, South Korea started testing a fleet last year and Utah got in on the act recently.

Ex Ford, Mazda designer to head styling at Renault

Former Ford Motor and Mazda designer Laurens van den Acker will succeed Patrick le Quement as head of design at French automaker Renault. Van den Acker, 43, quit as head of design at Mazda earlier this month. He will join Renault on May 15 and assume le Quement's full responsibilities starting on Nov.