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

Test your car's audio quality with iTunes playlist

General Motors audio engineer Matt Kirsch, who did the sound work for the Chevrolet Cruze, has developed an iTunes playlist that helps drivers test their cars' audio quality. The “10 Songs for an Audio ‘Test Drive'” playlist includes: “Don't Know Why” by Norah Jones “Diamonds and Rust” by Joan Baez “No One” by Alicia Keys “Hotel California” by the Eagles “Boom Boom Pow” by the Black Eyed Peas “Rock That Body” by the Black Eyed Peas “Hide and Seek” by Imogen Heap “He Mele No Lilo” by Mark Keali'i Ho'omalu (from Lilo & Stitch) “Bird on a Wire” by Johnny Cash “Packt Like Sardines in a Crushd Tin Box” by Radiohead While “Boom Boom Pow” and “Rock That Body” should have accurate and powerful bass beats, “No One” and “Bird on a Wire” should feature clarity in the vocals. Kirsch's playlist is available for download at http://tiny.cc/c2ach.

Audi Q5 Cabriolet rumours gather speed

The Audi Q5 Cabriolet - another niche for Audi We all laughed when Audi brought us a Cabriolet SUV in 2007 with the Cross Cabriolet Concept. Who on earth would ever contemplate chopping the top off an SUV for anything other than a Concept we all said? Turns out that Nissan would. We first heard rumours about a drop-top Murano early last year and decided they were mad.

Vauxhall Zafira Tourer to undercut Ford S-Max price by over £1,200

Vauxhall Zafira Tourer undercuts the S-Max on price We had the usual tease for the Vauxhall Zafira Tourer – Vauxhall’s answer to the Ford S-Max – earlier this year, with the Zafira Tourer finally turning up at the Geneva Motor Show in the Spring and a proper, production reveal a couple of months later. And it looks a convincing effort by Vauxhall to take the fight to the S-Max in the ‘Sporty’ MPV stakes. If any MPV can ever be considered a ‘Sporty’ proposition, that is.