(mods may move this to correct place if this isn't it..) We can't be far from all electric race series. Personally, one of my life long dreams, dreamed over a crappy but long slot car track back in the eighties... The electric motor is soo much better when it comes to fulfilling the needs of racing, mainly totally flat torque curve from zero RPM to max and delivering all that torque to the wheels directly, keeping most of the mass pushing down directly over the control surfaces, ie contact patch between tires and road, no need for heat dissipating friction based brakes, you can recycle energy, control the force applied with fly-by-wire technology (you point the direction, the car takes you there), independent four wheel drive and steer with active suspension.. gimmegimmegimme... Without the driver compartment, it could be designed to be four wheels connected by flat floor and wings on top of it. Design concepts are pretty stagnant, almost every series are pushed to the limits and no radical changes are going to happen in the internal combustion engine department. In F1 blown diffuser cars didn't look any different from non-blown ones, you needed to be pretty well informed about the finer details. Without big block of motor and transmission, how far can the shape be taken? Are we going to see motorcycle positions in closed cockpit? Sitting all the way back or behind one set of wheels, non symmetrical designs etc.. Opens up the possibilities a lot, this VOLAR-e is still really really conservative approach.