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

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.

Lexus IS 250C launches

The Lexus IS 250C launched in Japan this week - and will reach the UK in July The IS Convertible comes in two flavours – the Lexus IS250 C and the 350C – although the initial launch is just the IS 250C. The IS 350C will launch later in the year. Lexus has been working on the IS Convertible for some time, and is aiming it straight in the sites of similar offerings from both BMW and Audi.

Lexus Unveils Cleaner, Greener Compact Exec CT 200H

BUYERS seeking the often-mythical combination of premium ambience and supermini levels of economy can now look to the revised Lexus CT 200h. The Japanese firm has revised its compact exec hybrid for 2014 with a class-leading 82g/km CO2 rating and combined fuel consumption of 78.5mpg. No doubt Lexus hopes the changes will tempt an increasing number of business users to the CT.