I agree, I mainly meant that a time trials car doesn't usually have to be prepared the same as a road racing car. In my opinion if your car is required to have all of that safety equipment and be scrutinized and be issued a competition logbook than it is a race car. Some time trial events don't even require a roll bar.
I'm going to take my grandmother's old Buick Century, bolt in a cage, and get a log book - then I'll have a racecar!
"Racing is life. Anything before or after is just waiting." - Steve McQueen