How big is a formula 1 racing cars fuel tank?

Answer 1

Actual size of it these days has no regulations as volume is not accurate, instead they would use weight. 2014 regulations say that no more than 100kg of fuel can be used during the race. As a result, I would presume the size would be enough so that about 110kg or so is used may be more or slightly less. 100kg of fuel is equivilant to about 140 litres. So, I will estimate about the size of a F1 fuel would hold about 150 litres but in past, that had been upto 200 litres, so it can still be 200 litres of fuel that can be stored in a signle tank. The size is kept secrete between each team and the size of it wouldn'tbe released as even the size of a fuel tank can be the difference between winning or loosing the championship.