Thanks guys,
200m - 300m is probably the max distance for quality spot / flood lighting in rallying you 'need', as such, that's what good notes are for..... ;-)
Rallysprint and the like, its 50-100m Flood..

Relative lateral vision through flood is probably the most important at about 50-100m coming into a corner. From what I've seen the 10w bars seem to be pretty good, but 20inch would be max total width I could probably go... I've also seen the ones that are bent / curved, which could be better for the angle into the corner? Food for thought...

As with everything, generally it always come back to cost being on a linear curve to quality. However, being in direct harms way on the front of the car, value for money is also an important consideration..

lachy, be interested in what you guys had on.. Do you have any in car footage from night stages of targa?

Cheers all