live streaming with internet interactive controllers,live stream to see your car,and the cost of track time would include the cost to rent various classes of cars(insurance policy as well incase you demolish the car) and paying marshals and pit crew.
This seems to be where things are heading or atleast it would make the tracks more profitable since it makes more racers available,the building aspect of racing could also be preserved by sending the car you build with backup motors tires etc.through the mail system.
The Amazon version of slotcar racing.
whats holding this concept up,I think its viable,all the technology is available and inexpensive enough.
A good IT person and computer hardware person with modest computer hardware.
come on guys lets move into the 21st century and now and start enjoying the few raceways still left in the world and through this 21st century concept lets create a new boom in the Hobby,(plus renting and selling rtr cars from the maufacturers and local builders which can keep if you buy it,soon to be added smell o vision so you can enjoy the smell of the race and the smells like moo juice,wintergreene,stp,burnt motors,lol
But seriously its doable,so why not do it?