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

Porsche 918 Spyder: New specs and new photos

The Porsche 918 Spyder specification have been revealed Porsche has tried to keep weight in check on the 918 Spyder, but having a big, heavy electric hybrid setup on board hasn’t made that easy, and nor has making that setup 4WD. So Porsche has built the monocoque chassis from carbon fibre reinforced polymer to keep weight in check, despite which the 918 Spyder still comes in at a weighty 1640kg, even in ‘Weissach’ trim (more in standard guise). So Poprsche has had to be clever about the way they use the power they have on offer.

Acura RLX Concept

Acura held the world debut of the Acura RLX Concept at the New York auto show, which indicates the design and engineering direction for Acura's flagship sedan, set to launch at the beginning of 2013. The RLX Concept's design continues the brand's ‘Keen Edge' design philosophy, with bodyside surfacing clearly related to the ILX we first saw in Detroit. The RLX maintaining approximately the same length as the current RL but with a wheelbase increased by 50mm while the front overhang has been reduced by the same amount.

Concept Car of the Week: Citroën C-Airdream

In the 1990s and early 2000s one of the most charismatic, brave and forward-thinking car makers, Citroën, had been reduced to the maker of budget, mainstream Euro boxes such as the Saxo and Xsara. The company hinted at its intentions to break free from its mundane existence as the maker of line-of-least-resistance rental cars with its Lignage concept in 1999 that harked back to its past large sedans, especially the CX. But it was at the 2002 Paris motor show that Citroën put a stake in the ground with its fabulously avantgarde Citroën C-Airdream concept.