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

Abarth 695 biposto is the quickest Fiat 500: Geneva Motor Show

The Abarth 695 biposto (pictured) is the the most extreme Fiat 500 The revised Fiat 500 range for 2014 is on show at the Geneva Motor Show this week with some nice revisions to take Fiat’s iconic little 500 forward. But if you want a Fiat 500 with decent get up and go you need to look at the Abarth 500s and now – also debuting at Geneva – you’ll also have the option of the quickest Abarth to date – the new Abarth 695 biposto. The 695 biposto comes with a 1.4 litre turbocharged engine delivering 187bhp, enough for a power to weight ratio of an impressive 5.2kg/hp thanks to weight savings cutting the 695 biposto’s weight to just 997kg.

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.

GM and Bezalel Academy of Art and Design develop Windows of Opportunity smart glass tech [w/video]

General Motors' Research and Development has collaborated with Bezalel Academy of Art and Design's Future Lab students to conceptualize new ways in which rear seat passengers – who traditionally feel disconnected from their environment – have a richer experience on the road. The result is the Windows of Opportunity project, a series of applications developed by the Bezalel students and built into full-size prototypes using multi-touch and gesture sensing surfaces developed by ClickEye. The projects were: – Otto an animated character projected over passing scenery that responds to real-time car performance, weather and landscape.