The three Aston Martin DB5’s were used for used rather destructively in the film to avoid the expense (and tragedy) of blowing up a real DB5. According to CNET, one of the surviving models was sold at auction for near USD$100,000.
The models were produced on a VoxelJet 3D printer, well known for one specific advantage: Hugeness! We’re not sure which VoxelJet was used by 007’s team, but the VoxelJet 4000 has a build volume of 4x2x1 meters!
We’re wondering why the Skyfall producers opted for a physical prop instead of using computer graphics, since blowing up a model would require careful design of the interior portions to ensure an accurate and realistic “blow up”. Nevertheless, these models are quite a feat of 3D printing.
Via CNET