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

Vuhl 05 is a Mexican Ariel Atom – costs from £66,000

The Vuhl 05 (pictured), track-focused road car, has been revealed The Vuhl 05 – which has been teased recently – was unveiled this afternoon in London as Mexico’s answer to the Ariel Atom. The Vuhl 05 uses a bonded monocoque with honeycomb panels and aluminium covered on plastic panels to keep weight down to just 695kg. That means that even though the Vuhl 05 has only 285bhp available from its mid-mounted 2.0 litre turbo Ford EcoBoost engine, it can still get to 62mph in 3.7 seconds thanks to a power to weight ratio of 400bhp per tonne.

Jaguar XFR-S – tease take 2

The Jaguar XFR-S – a more powerful version of the XFR – will debut tomorrow at the Los Angeles Auto Show, but we get a second tease first. Jaguar’s punt at making the now ageing XFR credible against the new BMW M5 – the Jaguar XFR-S – is getting its debut at the Los Angeles Auto Show tomorrow, but ahead of that full reveal Jaguar is teasing interest with its second teaser photo of the most powerful saloon they’ve ever built. Last week we got a front view of the XFR-S with its more aggressive nose (and Jaguar’s favourite ‘Speedy’ blue paint job) and this week we get to see the thumping great carbon fibre rear wing Jaguar has bolted on the back of the XFR-S.

Toyota NS4 plug-in hybrid unveiled at 2012 Detroit show

The new Toyota NS4 was one of the surprises of the 2012 Detroit auto show. It's the Japanese car maker's vision of what a new family car will look like in 2015. That's not so far off, and nor does this show car seem too other-worldly.