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

Jaguar XF-R unveiled at Detroit auto show 2009

By Tim Pollard Motor Shows 10 January 2009 22:52 Jaguar's XFR is shown today at the Detroit auto show 2009 – and the XFR at a stroke becomes the fastest saloon the Midlands manufacturer has ever made for the roads. Jag has taken the XF saloon and fettled it with the new direct-injection 5.0-litre V8 petrol engine that supersedes the familiar 4.2, but breathed upon by a new supercharger to crank out a wholesome 503bhp.The R model is extremely rapid, thanks to a classic Ayers Rock torque curve that peaks at 461lb ft from just 2000rpm and doesn't go away until 5000rpm. There's brawn wherever you need it, and the XFR scuttles to 60mph in a scant 4.7sec.

Porsche Macan makes Harrods debut

THE PORSCHE Macan has been given its first public UK appearance – as the star of a Harrods window display. The world-famous department store in London’s Knightsbridge is playing host to the Macan, the 911 Turbo S, the Panamera S E-Hybrid and a scale model of the amazing 918 Spyder hybrid hypercar. Between 10am and 8pm daily, the public will be able to get up close and personal with each of the distinctive displays, two months before the Macan’s official arrival in British Porsche Centres.

A closer look at the 2015 BMW M3 sedan and M4 coupe: Turbocharged performance is gonna cost you

By the time the 2015 BMW M3 sedan and M4 coupe were revealed at the Detroit auto show, we already knew a lot about what to expect from the Roundel's newest generation of high-performance driving machines. It was no secret, for example, that the new M3 sedan and its two-door counterpart, the M4, will be down two cylinders and a few hundred pounds from their predecessors. Now that we've had a chance to get a look at the cars in production trim, here's a closer look at what's under all the aggressively vented fascias, spoilers and M badges.