Gasoline isn't that explosive. You can shoot up a gas tank and it will just burn. What you see on TV is movie magic. Gasoline vapor can explode, but you need the right air to fuel ratio and a spark.
I’ve seen a few gasoline fires that start by burning, and then much more rapidly expressing potential.
They did get it to happen, they just had to try really hard.
In most accidents the gas tank will not blow up.