Maybe a bit OT, but saw right now "sport und talk" on ServusTV with Dr. Marko and Dr. Schöggl (AVL). There were some videoshots from a full-chassis-dyno linked to a simulator, looked quite impressive. There were some talk about that in the past, but I've never seen any pictures or videos until now. You can test the chassis with gearbox & powerunit & suspension. Looks really cool.
RBR is supposed to have such a full-chassis-dyno.