Hopkins Towing Brake Control, Impulse #47235 Up To 6 Brakes on 2040-parts.com

Win a ride in the Honda FCX Clarity fuel cell

CAR has a rather special eco treat to offer to one lucky reader – a chance to ride in Honda’s FCX Clarity. Not heard of the FCX Clarity? Well you should have because it’s the world’s first serious hydrogen-powered car (only water is emitted from the exhaust) and a few lucky Californians and Japanese currently get to lease one as part of Honda’s research, even though they’re worth about £1m each.

Chevrolet Spark EV tops EPA's fuel-economy rankings for 2014

The 2014 Chevrolet Spark EV has been named the most fuel-efficient vehicle by the EPA and the Department of Energy in a new ranking for 2014. The Spark EV returns a combined 119 mpg equivalent, achieving 128 mpg in the city and 109 mpg on the highway. Chevrolet's pure-electric hatch displaced last year's chart topper, the Scion 2013 iQ EV, with its 121 mpg equivalent rating, but the Scion is not offered for the 2014 model year, so it didn't make the list for the U.S.

Synthetic diesel fuel powers 1,000 miles of Audi

Audi began a 1,000-mile eco drive on Oct. 18 in a demonstration named "Eureka! Diesel Drives the Future." Two Audi A3 TDI test cars left Eureka, Calif., and headed south, filled with RenDiesel, a synthetic fuel from Rentech.