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

Concept Car of the Week: Mercedes T80 (1939)

In the decade before World War II, no other carmaker even came close to matching the combined dominance of Mercedes-Benz and recently founded Auto Union. Supported by Adolf Hitler's Nazi government, the two brands had grander plans to demonstrate Germany's technological supremacy. In August 1936, Auto Union engineer Ferdinand Porsche and race car driver Hans Stuck approached Wilhelm Kissel, chairman of Daimler-Benz, and presented a plan to build a car that would set a new land speed world record.

London cabbies in go-slow protest

LONDON cabbies are staging a go-slow protest in the capital today against a decision by London Mayor Boris Johnson over taxi pollution. The Cabbies Against Boris (CAB) organisation says Mr Johnson is wrong to have scrapped older taxis on pollution grounds. CAB says research shows that new vehicles contribute more to pollution than older ones.

Revolutionizing the BMW M3

BMW is less than a year away from officially revealing the fifth generation of the menacing M3, the first to receive turbocharged six-cylinder power. The performance sedan, code-named F80, is expected to appear as a lightly veiled concept at the 2013 Geneva motor show, debuting the appearance and mechanical package of the M division's eagerly anticipated Mercedes-Benz C63 AMG rival. A showroom-ready version with a production interior arrives at next year's Frankfurt motor show, BMW sources say.