Diesel is huge in Europe, but big cars like the Patrol are pretty rare over there.
The Saudi's love petrol and it's cheap, and in the US is near impossible to buy diesel in towns or cities, usually it's only available on the interstate highways.
We've hired RV's over there 3 times, 32-34 foot units, weigh in at 15 or 16 tons, and all powered by V10 petrol engines. Economy was terrible on the first two, equiv to about 5mls to the gallon, the latest model we had this year managed about 8.
The yanks don't want diesel, and after a chat with some fellas at the BMW museum in Munich last year, even they said petrol will be the way of the future, that diesel has a very measurable lifespan, and it's not much longer. They said small petrol engines have come a long way, producing good torque with good reductions in fuel usage over the last few years, with better to come.
Maybe the Nissan boys know what they are doing and don't really care what one of the smallest markets in the world thinks ?