I am not talking about modern F1 cars and fuel tanks capacity behind the driver, because there are two different subjects in your topic.
So you do realize there is a problem with modern F1's.
1968 brabham bt26 - fuel tank 1.jpg 149.85K 22 downloads 1968 brabham bt26 - fuel tank 2.jpg 169.78K 30 downloads 1968 brabham bt26 - fuel tank 3.jpg 281.87K 31 downloads 1968 brabham bt26 - fuel tank 4.jpg 132.51K 24 downloads 1968 brabham bt26 - fuel tank 5.png 133.37K 25 downloads 1968 brabham bt26 - fuel tank 6.jpg 274.15K 34 downloads
1968 brabham bt26 - fuel tank.jpg 215.57K 28 downloads
These are some pics from the old era, how can anyone fit 100 liters of anything inside that cockpit when someone is siting in it ?
I chose the 5 liters Jerricans or 5 liters water bottles so everyone can see how big it is.
Now sit down and put 13 bottles of 5 liters each on your left side and the same amount on your right side, and now you can see what i'm talking about, there is not enough room in that cockpit, it's a race car no a van.
Ask yourself a smart question :
How come there is NO information on size on any fuel tanks of that era ?
Don't even look at the bladder, even a 10 years old kid can tell you there is not enough room for 30 liters of fuel.