In the 2d viewer, the cars are represented with a number. This is great to help determine the different people who share similar colour schemes. However it is sometimes awkward to see who's who in relation to the actual standings.
My proposal, next to the driver name on the timing sheet/display could we have the car number also? Whether it be in (brackets) directly before or after the name, or even in it's own seperate column? e.g;
Position - Car # - Driver name
1 3 Mr Smith
2 15 Mr Jones
3 8 Mr *indert generic name here
Sorry for the basic explanation, but I hope you get my idea.