I understand the concept behind a ramp test, and how it is normally done. I seem to be having trouble making my point here, which is probably my fault, but I'll attempt it one more time.
On dirt/grass/ice or any other slippery surface, the vehicle can stop going forward up the ramp _before_ the (in your case) rear driver's wheel leaves the ground. There is not sufficient downforce on it to provide traction and so it spins. There is generally no such problem on concrete, where most (documented) tests are held. On dirt, as a tester you can attempt to "run" the car at the ramp a little, to get over that point, and then back down until the wheel is just touching. Or you can just say "far enough" and measure it there, which is what a lot of people would do - in which case the car with TC/lockers will seemingly out-flex a similar vehicle without.
As you seem to be clarifying (above) that you ran all vehicles until the wheels were off the ground and then backed up, I am happy to withdraw the criticism, but I'm sure you'd agree that with wheel-spin, dirt, general un-eveness, and non-standard suspension set-ups, it becomes a pretty imprecise exercise, even when only considering _relative_ performances - simply the order of the vehicles can affect the outcome.
I'm not trying to say that the LC200 is not impressive in terms of wheel articulation for a 4WD with independent suspension. But without a more controlled test, I thought your initial claim that it would "outflex anything" a little premature. Even as you later qualified this statement, perhaps the language should have been a little toned down - or am I simply being a little too sensitive to the constant Toyota marketing hype we've had to endure over the "Earth's Greatest 4WD" LC200?
And I apologise for my prescient remarks - I (inappropriately) assumed that you had not ramped an LC200 and a D3 together. So I should ask - have you? Given that the D2 didn't seem (in the photos) to be that far behind the LC, and that the D3 has a higher RTI score than the D2, I personally wouldn't have been comfortable stating that the D3 would have been no contest, without evidence. BUt I'm willing to concede that the photos did no justice to the real outcomes, in which case I'm talking out of my **** ....
Cheers,
Gordon
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