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

Cloud rises over diesel plan for Nissan Maxima

Nissan North America may postpone a V6 diesel engine planned for the Maxima sedan in 2010. Since the company revealed its Maxima diesel plan two years ago, gasoline prices have fallen dramatically, auto sales have collapsed and Nissan has begun reviewing product plans as it scrambles to restore profitability. "We haven't reached a decision on the diesel yet, but we have to consider where we want to put our capital investments," says Larry Dominique, North American vice president for product planning.

Mercedes try to 'bring the noise' back to F1

MERCEDES trialled a device aimed at amplifying and improving the much-maligned sound made by the 2014 marque Formula One cars on the second day of testing in Barcelona. With new V6 engines forming part of an overhaul in F1 regulations, widespread criticism of the dulcet tones has continued from the opening race of the season in Australia. With F1 chief Bernie Ecclestone amongst those to question the enjoyment of listening to the new engines, the teams decided to look into ways of making it a more pleasurable experience.

Koenigsegg's craziest supercar yet debuts at Geneva

Here's what you need to know about the Koenigsegg One:1. It weighs 1,360 kilograms; it produces 1,360 hp. One horsepower per kilogram, which is why mad scientist Christian Von Koenigsegg is absolutely justified in bragging about it: it's the world's first "mega car," he said.