96 Polaris Sltx 1050 Reed Valve Cages on 2040-parts.com

Concept Car of the Week: GM-X Stiletto (1964)

With dreams of flying cars as the ultimate inspiration, General Motors designers in the ‘60s used every trick possible to make their creations appear as though they were floating – long, straight bodies, wheels pushed in and hidden away, large fins and lights that looked like rockets. As William L. Mitchell took the reins of GM Design, he brought a more high-tech approach, with simpler surfaces, a more restrained use of chrome and a general sense of elegant simplicity.

Toyota to unveil 2013 Avalon in New York

Toyota is set to debut an all-new US-designed sedan at the 2012 New York International Auto Show next month The teaser sketch, which only shows the new car's rear, suggests a departure from the rather bland, conservative design of the current model. The outgoing Avalon very much a traditional three-box design, whereas the teaser image suggests the new model may feature a fastback roofline in the mold of the Audi A7 and Mercedes-Benz CLS. A 'four-door coupe' if oxymorons are your thing.

New 2012 Mercedes SL costs from £72,495

New Mercedes SL 350 costs £72k The new Mercedes SL arrives in the UK next month (June) and will cost from £72,495 for the SL 350. Mercedes revealed the all new SL roadster – the first new Mercedes SL in a decade – just before Christmas, but it’s taken almost six months more to find out what it’s going to cost in the UK. With the first SLs arriving on our shores in June, Mercedes couldn’t really have left it much later to let customers know that the entry-level point for the new SL goodness is going to be £72,495 for the BlueDIRECT 3.5 litre V6 SL 350, rising to £83,445 for the 4.7 litre BlueDIRECT V8 SL 500.