Aston Martin reveals Vanquish Zagato Speedster and Shooting Brake

Aston Martin has revealed pictures of an all-new Zagato Speedster and Shooting Brake that is based on its Vanquish S coupe.

The British sports car maker has confirmed it will make just 28 Speedsters and 99 Shooting Brakes, which will join the limited-run Vanquish Zagato Coupe and convertible Vanquish Zagato Volante that were both unveiled back in 2016.

Both cars are designed in collaboration with Milan-based Italian design and coachbuilding company, Zagato, and the limited-run Speedster will be revealed at next week's Pebble Beach Concours car show.

The Shooting Brake, meanwhile, will be unveiled later in 2018, Aston has confirmed.

Power for all four Vanquish models will come with the firm's naturally aspirated 444kW/630Nm 6.0-litre V12 that's combined with an eight-speed automatic.

Designed to offer the "raw excitement of an open-top ultra-high performance sports car", the Zagato Speedster is the most extreme reimagining of the Aston sports car yet, featuring two aerodynamically-honed 'Speed Humps' that sit above the rear boot lid.

At the rear of the car, there's a pair of Aston Martin Vulcan-inspired blade tail-lights.

Clothed in lightweight carbon-fibre body panels, the Zagato Speedster should easily be able to eclipse the 3.5-second 0-100km/h time of the standard Vanquish S.

The Vanquish Zagato Shooting Brake, meanwhile, is still strictly a two-seater. Featuring the firm's trademark 'double-bubble' roof from the original '60s BD4 GT Zagato, the Aston wagon has been created to be a more luxurious grand tourer.

Prices haven't officially been announced for the new additions to the Vanquish Zagato family, but since the Coupe reportedly costs £500,000 ($A800,000), the new Shooting Brake is expected to be priced at more than £650,000 ($A1.1 million).

If you fancy the more extreme roadster, meanwhile, expect to part with around £1 million ($A1.6 million).