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

Audi A3 2.0 TDI gets greener

The Audi A3 2.0 TDI gets a 'Green' makeover If you read here regularly you’ll be only too well aware that every week we report on cars that have cleaned up their act, got more economical and are emitting less CO2. Less cynical souls than us may reasonably conclude that this is because car makers want to ‘save the planet’. But of course, it’s nothing of the sort.

McLaren mysteries: Some things you might not know about the P1 and its maker

The McLaren P1 is one of the most spectacular supercars in the world, and it's been an object of fixation for enthusiasts since it debuted as a concept last fall in Paris. The basics are well known: a 903-hp hybrid powertrain, carbon-fiber for almost everything, and taut, curvaceous styling that introduces McLaren to a fresh generation. The P1 grew out of a somewhat hokey mission statement that McLaren produced back in 2009.

MIT researchers rethink electric-car batteries

Researchers at the Massachusetts Institute of Technology say a new battery design for electric vehicles could be a lightweight and inexpensive alternative. The goal for the team's three-year project, launched in September 2010, is to have a functioning prototype ready to be engineered as a replacement for existing electric-car batteries. At this point in the project, the prototype uses a “semi-solid flow” to separate the two functions of a battery--storing energy and discharging it when needed--into separate physical structures.