+1. Essentially all those technologies that would improve a road car without taking actual driving work away from the driver.WhiteBlue wrote:All the efficiency technologies like turbos, direct injection, variable valves and self ignition. From the chassis side flexible body parts or generally the ban on ground effect and movable aerodynamic devices, inerters and such things that increase mechanical grip and reduce drag. I also dislike the general restrictions on engine type and energy recovery systems. I think fuel and budget restrictions are better and would provide more innovations that benefit the society as a whole than very tight technical restrictions.
So adding to those above, hydraulic suspension, 4 wheel turning and 4WD among numerous others.