Datsun Roadster 2000 U20 Fuel Pump & Spacer on 2040-parts.com

Carbon-fiber parts and a software fix help create a lighter, faster Fiat

Chrysler Group's Mopar parts brand and Italian supplier Magneti Marelli have teamed up on a design exercise based on the 2012 Fiat 500 Abarth that shaved weight and added horsepower. The vehicle, called the Venom, has a number of carbon fiber components -- hood and side mirrors, for example -- that makes it about 200 pounds lighter than the 2,512-pound Abarth. The Venom uses software updates and additional exhaust components to boost the Abarth's standard 160-hp 1.4-liter turbocharged engine's output by as much as 25 percent.

Motown’s greatest hits ­– all the best cars from the Detroit Motor Show 2014

Detroit, heart of the American car industry, traditionally hosts the first motor show of the year each January. Officially known as the North American International Auto Show – or NAIAS – it’s a chance for carmakers to kick-start the coming 12 months with a bit of glamour and sparkle. And the 2014 Detroit Motor Show has not disappointed, with a substantial number of new debuts and a chance to see some existing favourites, too.

Catalytic converter thefts double in three years

Associated Press Thefts of catalytic converters from cars have more than doubled in less than three years, according to an investigation by the BBC. Data compiled from 40 police regions across the UK reveal that in 2012 a total of 8,947 catalytic converters thefts were reported, compared to 3,957 similar cases recorded in 2010. On Bing: see pictures of catalytic convertersStreet sweepers to mine UK roads for precious metals A car’s catalytic converter reduces its harmful exhaust gas emissions by initiating a chemical process to neutralise many toxic substances emitted from the engine.