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

Volkswagen shows off new 1.8-liter engine for Jetta, Passat, and Beetle

Volkswagen is rolling out a new 1.8-liter turbocharged and direct-injected TSI engine which will debut in the Jetta, Beetle, and Passat later this year. This thrifty new engine will replace the 2.5-liter five-cylinder engine now available in those models. But the 1.8-liter is no slouch: it produces the same 170 hp as the outgoing five-cylinder engine, while adding 7 lb-ft torque for a total of 184.

Jag Land Rover factory closure ‘already decided'

Jaguar Land Rover management has already decided which UK factory to close – and the decision will be announced this autumn in 2010. The car making group, which manufactures around 250,000 cars a year, operates out of three UK sites: Castle Bromwich and Solihull near Birmingham, and Halewood near Liverpool. Those sorts of volumes are more normally associated with a single factory or, at a push, two.

Mercedes-Benz B-Class aerodynamics tested [w/video]

Mercedes-Benz has produced a video testing the aerodynamics of its new B-Class – which it claims is the most aerodynamically efficient car in the world – using a wind tunnel and fluorescent paint. The W245-generation B-Class has the lowest aerodynamic drag in its segment with a Cd of just 0.26, thanks to features such as serrated front wheel arch spoilers, optimized cooling airflow and a Pagoda roof to help airflow over its profile. The car's aero properties were put to the test at the MIRA vehicle test facility in the UK using fluorescent paint in 60mph winds to highlight its flow dynamics, only visible under UV lights.