3117145[/URL]]Actually, Drive ran a standard Range Rover, the Y62, an LC 200 and a Merc GLS across the Simpson Desert a couple of years ago: in their view the Range Rover was clearly the best vehicle, in terms of comfort, ability and fuel economy. The only issue was that it blew a shock absorber at the end - but then so did
all of the Merc G Pros that went down the Canning Stock Route around that time.
https://www.drive.com.au/news/outbac...0130815-2s03i/
https://www.drive.com.au/reviews/ran...0130815-2s0i5/
19 or 20 inch tyres may not be ideal in terms of side wall when you want to drop the tyre pressures but the overall diameter is the same whether you're running 17, 18, 19 or 20 inch wheels (presuming that you don't try and increase that diameter, but then you run up against clearance issues under the bodywork). Given that the Range Rover has EAS I wouldn't've thought that the comfort would be much affected by the tyre profiles.