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

Concept Car of the Week: Alfa Romeo Disco Volante (1952)

In 1951, straight after winning the F1 championship, Alfa Romeo surprisingly retired from racing. The tough post-war financial situation led the Italian brand to focus its investments towards more profitable projects such as the 1900 Berlina. The competition department stayed open on the condition of delivering a brand-boosting racecar for participation in the 1952 Le Mans and Mille Miglia races.

Audi R5, Porsche 550, VW Bluesport 'on hold'

Numerous indications are pointing to the exciting mid-engined VW, Porsche and Audi sports cars being on ice. The group had been collaborating to develop the VW Bluesport, Porsche 550 and Audi R5 - some observers had hailed the new roadsters as the Elise from Germany. Porsche doubts over the 550 But at the weekend Porsche CEO Matthias Muller told German business rag Wirtschaftswoche that he was worried a cheaper Porsche may dilute the brand's image.

2012 Renault Twingo Facelift revealed

Renault Twingo gets a new nose for 2012 The Renault Twingo is Renault’s smallest car, and not one we Brits have really taken to our hearts, at least not unless we need very basic hire car when in Europe. So a 2012 facelift for the Twingo may not be huge news, but it is the last step on the way to an all-new Twing0 which will share its underpinnings with the next generation Smart and, we assume, become rear wheel drive in the process. The facelift we get on the Twingo looks like it’s going to be just the nose, as that’s the only photo Renault has released, unless they have a surprise in store for the Twingo when it arrives at Frankfurt in September.