Our spy photographers have managed to capture images of the next big model to be launched by Aston Martin.The new Vanquish, set to replace the DBS, was spotted undergoing testing at Germany’s Nürburgring race track. The styling is identical to that of the AM310 concept, shown in May 2011 at the Concorso d’Eleganza Villa d’Este in Italy, though the wheels have been changed. The design of the new model is evolutionary rather than revolutionary. Aston Martin says the new model makes use of lightweight materials, such as carbon fibre for the body and aluminium for the shell. FOR TWO, MAYBE FOURThe Vanquish will come standard with two seats, with a small rear seat for two available. Power will be derived from a heavily revised version of the same 5.9-litre V12 that is said to be able to develop 421kW (up from 380kW in the current DBS) at 6750rpm and 620Nm at 5500rpm. The new model is expected to rocket from 0-100km/h in 4.1 seconds with a top speed of 295 km/h.Power will be sent to the rear wheels and the engine will be mated to a six-speed auto.Torsional rigidity is improved by 25%, too. It will reportedly be more practical with a 368-litre boot that is 60% larger than that of the DBS. The Vanquish will go on sale in Europe later in 2012, with UK prices the equivalent of R2.45-million.