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

Concept Car of the Week: Saab Aero X

In January 2005 Bryan Nesbitt, then-executive director of GM Europe Design, charged the 15-strong Saab Advanced design team in Gothenburg, Sweden, to create the "ultimate vision of the brand". The design team – led by head of Advanced Design at Saab, Anthony Lo – worked on a number of sports car proposals, which were considered 'the jet fighters of the road.' The chosen proposal by Alex Daniel was for a large, front-engined sports car that would become one of the most universally acclaimed concept cars of recent times. Of course the Aero X's door arrangement – complete with huge, forward-hinged canopy – is its party trick, but even without the theatrics the car's proportions, surfacing and graphics are exceptional.

Former Ford exec Theodore shows off lighter chassis at SAE

Automakers are facing tougher government regulations for fuel economy, and one former Ford and Chrysler executive says he has a solution Chris Theodore, best known for his work on the Ford GT and Dodge Viper, has designed a vehicle chassis that he says will provide automakers with weight savings, cut manufacturing costs and make electric vehicles more economically viable. Theodore is showcasing his proof-of-concept Uni-Chassis at the SAE World Congress this week. It uses the powertrain and suspension of the GT, under an agreement with Ford.

Lexus ends production of LFA supercar (2012)

The final example of Lexus's carbonfibre supercar – the LFA – has rolled off the company's Motomachi production line in Japan, bringing to an end a seven-year journey from the initial concept model, and two years of LFA production. It's surely the longest gestation and shortest lifecycle of any car in recent memory. That final Lexus LFA will be worth a few bob in years to come then...