I think we should.. The more realistic is better.
In GTA, i hated the fact cars had seemingly infinite fuel. Also, i hated the the fact we couldn't turn on our headlights whenever we wanted to and we couldn't even open the top of a convertible car. I think it would also be better if the car didn't turn on automatically after entering.. It would be better if you had to press "e" to enter the car and then, press "h" to turn on the engine. That would make the gameplay more realistic.
endless fuel isnt bad in a sandbox game.....Rockstar already tested the idea of your car running out of fuel so you need a petrol station. But the test players didnt liked it so....