Ah yes but isnt the issue the requirement for the car to fit multiple sized drivers? So they cant bolt the seat to the cage because the latest shorty pipsqueak driver cant reach the pedals
The driver should be in effectively a survival cell, in a similar manner to the weirdo application of same that Larko tried to implement in his very first M10 EF Falcon.
Maybe thats the next answer, build a cocoon structure for the drivers to sit in out of carbon fibre, like an F1 car....