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

World’s best-selling roadster returns

MAZDA has released details on the brand-new fourth generation MX-5, already the best selling roadster of all time. Launched simultaneously at events in Barcelona, Japan and the USA, the fourth-generation MX-5 is the first to benefit from Mazda’s SkyActiv efficient technology. That means a frugal but powerful petrol engine and a substantial weight saving of 100kg over the previous generation.

Renault Twingo and Clio Grand Tour

By Ben Whitworth Motor Shows 08 March 2007 10:12 French but sans le funky look A busy show stand for Renault – as well as unveiling its new Twingo city car, the French manufacturer pulled the wraps off a thinly disguised version of its upcoming Clio estate to take on its Fabia and Peugeot 207 wagon rivals. After the funked up coolness of the Twingo concept car shown at the Paris Motor Show last year, we are more than a little underwhelmed by the production Twingo. Renault is keen to move away from the utilitarian look and feel of the original model – it will leave cheap and cheerful sales to the Clio Campus – and pitch the new model at sharper-suited rivals like the Mini.

McLaren P1 - full story at Paris motor show 2012

Journalists often talk of cars stealing the limelight at motor shows. If any larceny was witnessed at the 2012 Paris motor show, it was most likely occurring on the McLaren stand, where the stunning P1 hypercar made its world debut. This is the culmination of Project P12, renamed as the P1 concept car to reflect F1's obsession with first slot on the grid.