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

BMW Concept Coupe

BMW unveiled their latest concept in the run up to the contemporary Mille Miglia, a road race for cars that competed during the original event held between 1933 and 1957. The BMW 328 that set the fastest time in 1940, averaging over 100mph, has also provided inspiration for the Coupe Concept, which mixes the older car's silhouette with surfaces closer to the Z4 on which it is based. Powered by BMW's seminal 343PS engine, the car is wrapped with carbon-fibre reinforced plastic (CFRP), whose form is defined by designers using plaster rather than clay "for a closer emotional experience".

Mazda's rotary engine stalled, not forgotten

Development of the next-generation rotary engine from Mazda Motor Corp., first unveiled three years ago, is making slow progress despite missing emissions targets. A top Mazda powertrain executive said today that the 1.6-liter rotary engine, called the 16X, is about 30 percent more fuel-efficient than the current rotary engine used in the RX-8 sporty car. In fact, the 16X so far performs slightly better than Mazda's standard two-liter gasoline engine, said Mitsuo Hitomi, general manager of the Japanese carmaker's powertrain division.

What are your favourite driving roads?

By Tim Pollard Motoring Issues 22 August 2008 16:42 We're on the hunt for the world's best driving roads. Click on the link below to tell us about your favourite routes of all time – you can debate your choices in our forum. And don't forget to come back to CAR Online next week when we launch our new adventure section on the website.