Brand identity in car design is a tricky thing. Automakers want their cars to be instantly recognizable as belonging to the brand, but if they go overboard, all their products can look the same.
Aston Martin tends to err on the latter. If you saw one on the street, you'd know you were looking at an Aston, but it'd likely take you at least a second glance to determine which model. But the British automaker does offer several, and following the debut of the new Vanquish, a couple of them have updates in store.