Strangely enough, in Dubai only UAE citizens can register a 79 pick-up as a private vehicle. Foreigners can only drive them as company cars.
The dealer told me that it was something to do with smuggling across the Saudi & Omani borders. I haven't had time to ask the Land Rover dealer if he's seen a huge influx of dodgy looking characters inquiring about Defender pick-ups...
Cheers,
Paul