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

Driven: Citroen DS3

The Citroën DS3's success has taken many – Citroën included – by surprise. The company has been forced to increase production since the car went on sale 12 months ago, in the light of unprecedented customer appetite. At launch, there were many who felt the DS3's relatively conventional nature did a gross disservice to the famous nameplate (despite the company's protestations that the DS moniker has no connection with its 50s namesake).

Caterham launches surprise motorbike division

CAR MAKER Caterham has created a motorcycle division in a shock announcement that sees the brand break new ground. The company, which as well as manufacturing the famous Seven roadster operates one of Formula 1 racing’s 11 teams, has revealed three prototype bikes to kick its two-wheeled ventures off. These prototypes, two of which look more like bicycles, have been scheduled for production in 2014, sparking surprise and debate among bikers and sports car fans.

Vauxhall & Opel could merge with Peugeot Citroen.

GM Europe (Opel and Vauxhall) could extend their deal with PSA (Peugeot Citroen) with a Joint Venture or merger. When GM Europe and PSA announced they were forming an alliance earlier this year, we asked if this was an admission that the mainstream car market in Europe had changed forever, and an alliance between Opel, Vauxhall, Peugeot and Citroen was the only way to keep the brands viable. But we did also question what use a projected annual saving of €2 billion by sharing suppliers and co-developing platforms would be to PSA and GM considering their woeful losses.