Cosworth, the famed engine supplier, will be supplying the engine. It's a 6.5-liter naturally aspirated V12. Aston had previously said the car will be a member of the one-horsepower-per-kilogram club, and so people are expecting the engine to make about 900 horsepower. It will of course be augmented by an electric motor, which will be fed by a high-performance battery from Rimac. (Yes, the same Rimac whose Concept_One has been shown in videos beating everything from Teslas to LaFerraris.) The as-yet-undefined amount of power will be routed through a seven-speed paddle-shift transmission supplied by Ricardo. And because you're going to want to stop, there will be big carbon-ceramic brakes – Alcon and Surface Transforms will supply the calipers and carbon discs.
Multimatic, builders of awesome shocks, will make the carbon-fiber tub that everything goes into. Multimatic has worked with Aston in the past, including on its last limited-production vehicle, the One-77. Bosch is responsible for the ECU, traction control, and stability control. LED lights will be supplied by Wipac.
So yeah, there almost aren't any high-profile companies left after this announcement. This car is going to be pretty extreme. Aston reiterates that it will build a maximum of 150for the road including prototypes, plus 25 more track-only models. They'll start going to customers in 2019.