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

Best 'Popemobile' for Francis

As people welcome Jorge Mario Bergoglio as the 266th pontiff of the Roman Catholic Church, we've been wondering what type of vehicle he'll choose to transport himself. Francis probably won't request a new set of wheels -- the bestsellingcarsblog.com, the top-selling cars in Argentina as of the end of February were the Chevrolet Classic, VW Gol Power, Ford EcoSport, Renault Duster, and the Peugot 207 Compact. None of these seemed regal enough for his holiness in our opinion, though.

Second Fisker Karma fire under investigation

Investigators hired by Fisker Automotive are looking into a Fisker Karma plug-in hybrid sedan that caught fire on Aug. 11 in a suburb outside San Jose, Calif. This is the second instance of a fire involving a Karma in the last three months.

New Audi RS6 to get 572bhp V8

The 2013 Audi RS6 looks set to swap its V10 for the new Audi V8 with the wick turned up to 572bhp – the same as the old V10. Most of the new A6 range has now arrived in showrooms – including the S6 and Avant – but what’s still missing is a new RS6, the Audi that used to have the heart of a Lamborghini. But as we reported in April, the 2013 RS6 is well on the way but it will be losing its Lamborghini V10 with its 5.2 litres and 572bhp and will instead get the Audi/Bentley twin-turbo 4.0 litre V8.