Aston Martin fans and owners can now rest assured as the hugely popular Sport Pack option is now available for the 4.3 liter V8 Vantage. The Sport Pack enhances the existing Aston Martin engine from 4.3 liters to 4.7, a change that will probably not make much of a difference considering the fact that you already are developing enormous power.

With the upgrade to the engine, the power is increased by 20 hp to a maximum of 400, while torque is increased by 10 Nm to a maximum of 420 ...

Source: Tuning - AutoEvolution