James, forgot to include:
* full description of all passengers, in age order
* what their weights might have been based upon the ride height of the vehicle at the time
* the types of tyres and wear pattern
*what type of car polish he/she used based upon degree of fade under the prevailing UV and light conditions.
* whether it was running rich or lean (via smell sense)
All this could have been easily picked up in that nanosecond it takes to recognise it as an SVX across the six lanes of traffic. I know, I can do it.
Cheers, Mark.