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

Citroen DS3 Cabrio Racing 'concept' (2013) first pictures

Citroen will show a 'concept' version of the DS3 Cabrio Racing at the 2013 Goodwood Festival of Speed – though it looks all but production ready to us. The DS3R Cabrio uses the same 202bhp 1.6-litre engine as the DS3R hot hatch, but weighs an extra 25kg thanks to the folding rood conversion. Citroen DS3 Cabrio Racing: the details The DS3 R Cabrio is mechanically identical to the hard-top DS3 R, with the same six-speed manual gearbox, Citroen Racing-tuned chassis, and uprated brakes.

Chevrolet Sonic

The Sonic is Chevrolet's latest attempt to induce a small car in the American market and take on the Ford Fiesta in one fell swoop. Replacing the generally unaccepted Aveo, the Sonic draws from a youthful and aggressive design in a bid to appeal to the younger market. Available as a four-door sedan (seen here) as well as a five-door hatchback, the Sonic displays a 'progressive exterior design', according to the American brand's press materials.

Faster Gumpert Apollo model to debut in Geneva

They may not be lookers, but there is no denying the performance credentials of Roland Gumpert's Apollo sports cars. With the base 650-hp engine package, the brainchild of the former director of Audi Sport is capable of reaching 60 mph in less than three seconds with a top speed or more than 200 mph. But now Gumpert is planning to reveal a faster chapter in the line at next month's Geneva motor show with the Apollo Speed.