Car on Fire!

[Snapper Baz]

Question time...perhaps my good friend Mr.Green could answer? A car pulls off on the wrong side of the circuit, ie: the opposite side of the track from a marshals post and/or perhaps a fair distance from a manned post. The car catches fire with the driver unable to exit and it seems obvious that it would take a few moments before a crew can get to the scene from the other side of the track or from other posts...as a person trackside, could I/would I (yes, i have been trained)be able to tackle that blaze with the fire bottle I'm standing next to or should I wait a few moments-possibly minutes before other help arrives whilst watching the driver in serious trouble? This is a hypotheticle question and over to the lads/lassie's in orange!