Porsche 914 Alternator Adjustment Hole Cap on 2040-parts.com

VW Golf GTD (2013) first pictures of diesel hot hatch

VW's Golf GTD - a performance diesel brother to the GTI hot hatch - is here. Rated at 182bhp and 280lb ft, it boasts more punch than the old GTD (an extra 12bhp and 14lb ft), and scores better fuel economy too: up 14mpg to 67.3mpg, if you opt for the six-speed manual gearbox. Could this be the Holy Grail of hot hatches, with punch and economy? Here's the lowdown.

Panasonic invests $30 million in Tesla Motors to develop batteries

Japanese electronics giant Panasonic Corp. said late Wednesday it invested $30 million in Tesla Motors Inc. to cooperate on green powertrain development.

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.