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

2013 Bentley Continental GT Speed Convertible: First Photos

We have the first photos of the 2013 Bentley Continental GT Speed Convertible ahead of a reveal at the 2013 Detroit Auto Show. Bentley hasn’t done the official reveal for the GT Sports Convertible yet, so all we have are the first photos in all their purpleness (although the DVLA thinks this particular Bentley is black). Under the skin we expect the same W12 with 616bhp and 590lb/ft of torque which is enough, certainly in the tin-top GT Speed, to get the monster Bentley to 62mph in 4.2 seconds and on to 205mph.

Tomorrow’s world: Fiat's MultiAir engine tech

By Jesse Crosse Motor Industry 14 October 2009 16:50 Fiat this year launches what it claims is a big step forward in variable valve timing: MultiAir. It's the first time that a manufacturer has made a properly variable valve system a production reality, and will slowly be rolled out across most of Fiat's and Alfa's car ranges.How does Fiat's MultiAir vary from existing variable valve timing (VVT) systems?Current VVT systems rely on mechanical systems to open and close the valves. Engineers have long understood the benefits of changing valve opening and closing times to tweak an engine's power and emissions performance, depending on the need for power or parsimony.Valves are an engine's nose and mouth – it inhales through inlet valves and exhales through exhaust valves.

Ellesmere Port's bid to build Ampera hits snags

By Rob Golding Motor Industry 09 October 2009 15:02 Prime minister Gordon Brown’s personal crusade to get Vauxhall's version of the Chevrolet Volt petrol-electric plug-in hybrid – the Ampera – built in Britain's Ellesmere Port factory in 2012 is a dream delayed, CAR can disclose today.News that the UK Astra plant is the best in Europe, that the Astra's Delta platform will underpin the Ampera, and that Volt will be on US sale from 2010 had been taken to mean that Vauxhall would be churning out the cars in the north west within three years.But the prospect of an electric car industry growing up around the run-down Merseyside manufacturing site is not imminent, CAR has learned.'No Ampera to be built in Europe before 2015'Vauxhall insiders have made it clear that the car to be known as the Vauxhall/Opel Ampera in Europe will be an import from the US for at least five years. One senior planner told us: 'The US will be the sole source of Amperas until at least 2015.'Bob Lutz, GM's former product supremo who recently came out of retirement as a PR, said that the low value of the dollar made the US an ideal site for the manufacturing of export cars. And with forecast sticker prices of the range-extender electric car standing at a scary £35,000+, every price saving is vital to its marketability.The European market also needs time to get its electricity recharge infrastructure in place before it is worth making cars onshore in volume, GM high-ups point out.