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

Audi RS6 Avant heads for EJAF with a little help from Gwyneth Paltrow

Gwyneth Paltrow signing an Audi RS6 Avant heading for Elton John’s White Tie & Tiara Auction Audi UK has a bit of a history of donating cars for auction at Elton John’s annual White Tie & Tiara Ball in aid of the Elton John Aids Foundation, and 2013′s no different. In the past we’ve had the appealing R8 Spyder as an EJAF auction lot and an A1 painted by Damien Hirst, but this year the EJAF is getting the super-estate Audi RS6 Avant, scribbled on by the delectable Gwyneth Paltrow. Audi roped in Gwyneth to turn up at the UK launch of the new RS6 Avant at Audi City in London and got her scribbling her moniker  on the interior of the RS6, a task Audi says would make their uber-shed worth £88k if they sold it – but if previous EJAF auctions of Audi’s cars is anything to go by it’ll fetch a lot more than that when the hammer goes down.

Autoweek in review: Lambos on parade, record breakers and the Ferrari LaFerrari

The week kicked off with renderings of a Maserati MC12 successor. We also reviewed the 2013 Nissan Nismo Juke and 2013 Cadillac ATS. Tuesday, we bench raced a new crop of supercars, comparing the Ferrari LaFerrari, McLaren P1, Pagani Huayra and Bugatti Veyron Super Sport -- read here to find which one came out on top.

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.