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Aston Martin Vanquish Volante (2013) at Frankfurt motor show

New models are coming thick and fast in Aston Martin's centenary year: here’s the drop-top Aston Martin Vanquish Volante. The soft-top flagship is the first convertible Aston with a carbon body, making the stiffest and most powerful drop-top it has ever built. Its 565bhp drivetrain has been taken straight from the Aston Martin Vanquish coupe – the most powerful Aston to date – but the Volante adds 105kg and an extra £6000 for a starting price of £199,995.

Porsche threatens to pull Boxster production from Magna

Porsche is considering canceling an existing contract with Magna to build the next-generation Boxster and Cayman in Austria starting in 2013 and may instead move production to Karmann in Germany. The move would be aimed at protecting Porsche's closely guarded engineering and production cost secrets for its upcoming entry-level roadster and coupe. Porsche insiders say plans established under former boss Wendelin Weideking to build the Boxster and the Cayman at Magna's Graz factory in Austria are now being heavily reviewed following the Canadian/Austrian company's bid to take control of financially embattled Opel from General Motors.

Audi A5 DTM Concept Car (2011) first official sketches

This is Audi’s new DTM racer: as new rules and regulations are ushered in for the 2012 German Touring Car series, Audi has chosen to replace its highly successful A4 DTM with a race car based on the new A5 coupe. And it’s been unveiled just in time to steal a little thunder from BMW as Ingolstadt’s local rival reveals its first DTM challenger in two decades. So the Audi A4 DTM becomes the Audi A5 DTM?