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

The great British motorway speed limit debate

Associated Press As the government plans a 60mph limit on a 32-mile section of the M1, Britain's speed limits are under the spotlight as never before. The lower limit was announced this week as part of a project to improve air quality in Derbyshire and Yorkshire. If approved, drivers will not be able to exceed 60mph between junctions 28 and 35a between 7am and 7pm.

V8 gasket-inspired iPhone case

A new iPhone 5 case designed to resemble the head gasket of a V8 engine will be available on March 20th. Creators id America -- specialists in mobile accessories -- say the design is not only visually appealing but durable and comfortable to hold. Dubbed the Gasket V8, the new case is constructed with aircraft aluminum and molded to provide a form-fitting structure that doesn't cover up access ports or buttons.

Lexus RC F & RC F Carbon price and specs – costs from £59,995

The Lexus RC F (pictured) costs from £59,995 The Lexus RC F Coupe arrived earlier this year at the Detroit Motor Show and now, following the end of IS F production to make way for it, the RC F is going on sale in the UK, with prices starting at £59,995. Whether the RC F offers enough to prove a challenge to the BMW M4 remains to be seen, but on paper it all looks very promising – and good-looking. In the UK, the RC F will come in two guises – RC F and RC F Carbon – with both models getting the same 5.0 litre V8 with ‘more than’ 450bhp and 383lb/ft of torque driven to the back wheels through an eight-speed Sports Direct Shift gearbox.