With the VW group comprising of more than 200 individual models of cars, a new platform sharing architecture was required to reduce costs, number of components, meeting exceedingly strict emission and safety standards. MQB not only represents a new car specific part platform, but also an all-new modular engine program and modular production program. This gives VW group brands the ultimate flexibility to build market specific trim variations and response to regional needs far quicker while reducing the overall complexity involved as different models from, say, VW Skoda and SEAT can be manufactured on the same assembly line without any major change over times. This is flexible manufacturing at it's very best!
Evolution-
I. NSF - the new generation of small "city" cars like the Volkswagen Up! and the Audi A2
II. MQB - an all-new component platform designed to span a range of vehicles:
a. A0-class i.e. Audi A1, VW Polo
b. A-class i.e. Audi A3, Audi TT, VW Golf
c. B-class i.e. VW Passat, third-row mid-size SUV and the CC (utilizing a transverse engine configuration)
Volkswagen is responsible for developing the MQB architecture.
The MQB Golf 7 chassis (front):
The MQB Golf 7 chassis (rear):
The blue area above is the fixed dimension (again only front to back - width is flexible) with the rest of the areas all permitting a wide variety of sizes and configurations.
Weight saving has been significant:
III. MLB - longitudinal engine component architecture:
a. B-class i.e. Audi A4, Audi A5, Audi Q5, Porsche Boxster
b. C-class i.e. Audi A6, Audi A7
c. D-class i.e. Audi A8, VW Phaeton, Bentley Continental) and will also include the Q7, Touareg and Cayenne
Audi is responsible for developing the MLB architecture.
IV. MSB - comprises the sports cars in the group brands with mid-engine front configuration like the Porsche Panamera, as well as future Lamborghinis and Bentleys.
a. MSB-M for mid-engine cars like the Cayman, Boxster and eventually the Audi R8 and various Lamborghini models.
b. MSB-P for rear-engine applications, ex. Porsche 911.
Porsche is responsible for developing the MSB architecture.
(Source: http://www.fourtitude.com/news/publish/ ... 7484.shtml)