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

Mercedes SLS AMG E-Cell (2010): the electric SLS

Following the unveiling of Tesla's updated Roadster 2.5, Mercedes is showing off its iteration of an all-electric sports car: the SLS AMG E-Cell. While the regular SLS pumps out 563bhp and 479lb ft from its 6.2-litre V8, the SLS E-Cell has four synchronous electric motors, powering all four wheels for a combined output of 392kW (equivalent to 526bhp) and a mammoth 649lb ft of torque. Crucially, all of that power is accessible from zero revs, allowing the E-Cell to sprint to 62mph in four seconds dead.

One Lap of the Web: The Internet celebrates the Mustang

Fifty years ago, Muhammad Ali became the heavyweight champion of the world, "Jeopardy!" debuted, Lockheed went 2,000 mph with the YF-12 and a mop-topped band went on a television show to promote what would be shameless nostalgia for the next 50 years, even while it was happening. Oh, and Ford introduced the Mustang, an event that would be Lee Iacocca's Second Greatest Shining Moment, behind introducing Chrysler's TC by Maserati as the prettiest Italian to arrive stateside since his mother. The World's Fair was 50 years ago this week, and the Internet remembers what it was like when the Mustang came out.

Ariel Atom police car (2014) revealed: Plod's anything but

By Tim Pollard First Official Pictures 03 June 2014 16:35 Somerset sports car specialist Ariel has come up with a shock for any would-be crooks or speeders: the Ariel Atom police car. Avon and Somerset Constabulary has taken delivery of an Atom 3.5R fitted with the Honda supercharged engine good for 350bhp. Even with the addition of police livery and blues-and-twos lights and sirens, Ariel director Simon Saunders is confident it'll hit 0-60mph in just 2.5 seconds.