1993 Honda Trx300ex Starter Reduction Gears & Cover B152 on 2040-parts.com

Audi A3 Sportback e-tron price and specs – costs £34,950

Audi A3 Sportback e-tron (pictured) costs £34,950 If governments are going to base car taxation on Co2 emissions, then car makers are going to build cars that ‘game’ the official tests. A perfect example of which is the new Audi A3 Sportback e-tron plug-in hybrid. It’s expensive at £34,950 (although the government bribe for plug-ins does drop the price you pay to £29,950), but thanks to its ‘up to 31 miles’ range on battery power only it comes complete with official economy of 176.6 mpg and emissions of 37g/km.

New gadget immobilises cars with electronic pulse

Mitsubishi It might sound futuristic, but British technology company E2V has developed a prototype gadget capable of remotely stopping a car using a burst of electromagnetic radiation. Although it does appear to be a piece of equipment from the ‘James Bond bad guy’ locker, this technology really does work and could be used by police forces in the future. On Bing: see pictures of speeding carsHow motoring convictions affect your car insurance So bank robbers beware – even speeders, too.

Mazda may revive the rotary as a hybrid car powerplant

Mazda Motor Corp. has given a new lease on life to its rotary engine in the form of a Mazda 2 hatchback reconfigured as an extended-range hybrid. The prototype runs as an electric vehicle, with an electric motor powering the wheels.