Fuel Tank Fires Are Hard. (How can I make a car as unsafe as possible)

I play in a CnR (cops and robbers) server. I thought it would be fun to make a tuned car build that bursts into flames when it crashes, but there is a issue....... I have no idea how to make a car so unsafe to the point that it catches fire on impact.

From my under-standing, for a fuel tank to catch fire you need to following:
-fuel tank leak.
- some sort of friction or hard direct contact with the fuel tank.

If anyone could give me some insights on this topic that would be great!