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

Driven: Jaguar XF

It is possibly harder to design a Jaguar than any other premium car brand. The essence of the firm's highly regarded design language is over 40 years old with the shadow of the 1961 E-type and 1968 XJ6 - and even the 1955 Mk1/1959 Mk2 - looming large. For decades the design group has taken cues from these old designs and reinterpreted them to appease the traditionalist Jaguar customer, but in doing so they have reinforced the 'old-man' image of Jaguar and pushed many customers to Audi, BMW and Mercedes-Benz.

New McLaren 650S Coupe & Spider: OFFICIAL

The new McLaren 650S Coupe (pictured) officially revealed After an initial tease last week, we had the first official photos of the new McLaren 650s yesterday which has prompted McLaren to do the right thing and officially reveal the new 650S today. Just as we’ve already reported, the 650S is a more focused 12C with front end styling that takes its lead from the McLaren P1, more power – up from 616bhp in the 12C to 641bhp (650PS) – and more focus on driver engagement. That new P1 front end new LED headlights mark the 650S out from the 12C, with a more integrated front splitter increasing downforce and door blades behind the front wheels directing air from the trailing edges of the splitter for better front end grip.

Durheimer succeeds Paefgen at Bentley, Bugatti

Porsche R&D chief Wolfgang Durheimer has been named the new head of Bentley and Bugatti to replace Franz-Josef Paefgen, who is retiring. Durheimer, 52, also becomes head of motorsports for the Volkswagen Group, beginning in February. Paefgen, 64, has lead Bentley since 2002 and Bugatti since 2007.