Wilwood Big Brake Front Disc Brake Kit 140-10776-dr on 2040-parts.com

Porsche Battery – a mere £1200

The rather expensive Porsche Lithium Ion Battery Car batteries have been roughly the same shape and size – and utilised basically the same lead-acid technology – for years. They’ve got better, as you no longer need to top them up with distilled water at regular intervals (I’m showing my age now), and they are less prone to going flat. But that probably has more to do with alternators replacing dynamos than the batteries themselves.

Most of Saleen sold to Michigan group

The future of specialty carmaker Saleen Inc. is getting a little clearer: Most of the company was sold to a Michigan group last week after being on the block since November. An entity called MJ Acquisitions, which owns parts and engine companies in Michigan, bought Saleen’s performance street-car program, supercharger and aftermarket business from Los Angeles private-investment firm Hancock Park Associates.

Volvo S60 Polestar goes in to production

It sounded like a plan to put it in to production – even if it would probably need twin turbos to make it nicely wieldy on the road – and that’s exactly what Volvo and Polestar have done. The Volvo S60 Polestar has gone in to limited production, initially for the Australian market, but instead of the mighty 508bhp of the concept it has to make do with a more pedestrian 350bhp, little more than the V60 we reviewed last year with the Polestar upgrade. But the extra power is enough to get the production S60 Polestar to 62mph in 4.9 seconds and, thanks to tweaks to the suspension, brakes and aerodynamics, the S60 Polestar looks like it will be able to handle the power quite well.