The range safety fleet at BATUS has over the years had many "bright" colours.
We have a CVR(T) Spartan that was all over yellow. There were some all ove red FV432s and some Warrior IFV as well so that is what I'm assuming you saw.
http://www.youtube.com/watch?v=4rN6O2O_yw0
at 37 seconds is a Warrior
http://www.youtube.com/watch?v=aERYm...eature=related
at minute 3:15 is a Land Rover likely of the same colour you saw.
If your looking for a similar speed try this one and tell me what you saw
http://www.youtube.com/watch?v=sS68P...eature=related
and some more footage for your delectation here
http://www.youtube.com/watch?v=tcaXy...eature=related
Robin