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

First Sight: Holden Torana concept

Holden has stolen the limelight at the opening of the Australian International Motor Show in Sydney, unveiling a ground-up concept car dubbed the Torana TT36. The concept revives a famous Australian nameplate from the 1970s - appropriate since, like the original Torana, it features rear wheel drive and a six cylinder engine. That's where the similarities end, however, as the new Torana's engine is an experimental 280kW/490Nm twin turbocharged version of the new global V6 Holden has begun manufacturing for various parts of the GM world and which will eventually be used by Alfa Romeo.

Taxi! Toyota's unveils black cab for 2013 Tokyo Motor Show

Toyota will unveil five new concepts at this month's 2013 Toyota Motor Show and - rather fittingly - it's the JPN Taxi Concept that will be first off the rank. And it's most certainly the concept that's captured our imagination. Toyota JPN Taxi Concept Looking every inch the next generation London 'black cab', the Toyota JPN Taxi Concept has been conceived with the Japanese government's programme for designing buses and taxis that are more user-friendly.

Are GM planning to shut Vauxhall for good?

Could General Motors (GM) be planning to close Vauxhall down for good as they seek an answer to huge losses in Europe. General Motors has had its share of problems in the last few years, not least the bailout needed to save it from bankruptcy in the US. That US bailout has seen GM return to profit in the US, but GM Europe continues to be a big hole in its accounts as the European car market continues to struggle with over capacity and a lack of buyers for traditional mainstream cars.