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

Autoweek in review: The Cayenne Turbo S gets more power, we drive the new Aston Martin Vanquish, and a Porsche 962 for the street

The 2013 Porsche Cayenne Turbo S will now have 542 horsepower. The Cayenne Turbo S will sprint from 0 to 62 mph in 4.2 seconds, with a top speed of 176 mph. Click here for more details.

New Ferrari California T gets new twin turbo V8 with 49% more torque (+video)

The new California T (pictured) revealed ahead of a Geneva debut It’s been a long time since Ferrari gave one of its cars a turbo charged engine, not since the late ’80s and the Ferrari F40, but that all changes – and no doubt points the way to the future – as the Ferrari California T gets revealed ahead of a debut next month at the Geneva Motor Show. Based on the V8 Ferrari build for the Maserati Ghibli, the California T’s new engine is a 3.8 litre twin turbo with 552bhp and a mountain of torque, 557lb/ft, a massive 49 per cent more than the current California produces. That improves performance marginally – 0-62mph in 3.6 seconds and a top speed of 196mph – but has a big impact on economy; the new California T improves on the current California by 15 per cent, recording official figures of 27mpg and 250g/km.

Concept Car of the Week: Honda Kiwami (2003)

As part of Honda's exploration into new, clean-performing technologies, the Kiwami concept was created to test public acceptance of the idea of a large, fuel cell-powered luxury sedan.  Unveiled in 2003, the simple yet striking design seemed like a Japanese twist on the Renault Vel Satis concept, which shared a similar wedge profile, wide stance and minimalist approach.  However, the Kiwami found its own interpretation of modern luxury, expressed through elegantly integrated technology rather than with crystal champagne glasses.  Up front, a full-width LED strip headlamp sat flush with the flat bonnet and the rectangular bumper to create a design of primitive beauty.  Further examples of the same simple Japanese aesthetic are found around the car, including the uncluttered body panels and a full-width tail-lamp graphic that matched the front theme.  The dramatic proportions of the interior were closely related to the package of the hydrogen power plant. Unlike other manufacturers at the time, Honda engineers did not create a 'skateboard' fuel cell chassis below the cabin. Instead, a sideways H-shaped layout for the control unit, ultracapacitor, fuel cell stack, hydrogen storage and other components was used, helping to create a lower center of gravity.