Volkswagen Group D platform
The Volkswagen Group D platform is a series of automobile platforms from the German concern Volkswagen Group. It has been used for large luxury automobiles. Originally used by the Audi marque, it is also latterly used by the Volkswagen Passenger Cars, and Bentley marques.D1/D11
The D1 platform was based on a stretched version of the Volkswagen Group C3 platform:
The D2 platform is an all aluminium monocoque, based on space frame principles, which helped to significantly reduce weight without being any less rigid. Audi AG refers to this type of construction as the "Audi Space Frame". It is technically the first 'original' D platform.
The D3 platform, also employing an aluminium space frame, was used for the second generation Audi A8, A8L, and S8.
The third generation Audi A8 launched in 2009 is sometimes referred to as the "D4" generation A8. This model combines an aluminium Audi Space Frame structure but no longer uses the D platform, but the Audi-developed MLB component matrix.D1 (VW Phaeton/Bentley)
The D1 platform cars share some components with the D3 platform, but have conventional steel bodyshell construction.
