Please make destroyed vehicle fires gradually burn out instead of suddenly switching off like a light...
Also make the smoke afterwards fade seamlessly out instead of just suddenly stopping.
As an idea, from ignition to extinguished there could be 10 stages of intensity for fire + light source and the smoke.
This would give visual variation to a battlefield with multiple destroyed vehicles all burning or smouldering at different intensities.
It would also save on performance due to fire never burning at full rate for very long :-)