I dont understand this. It seems like the lines have completely blurred between the "Prado" and Land Cruiser with this generation and that the 250 designation just seems to be a formality. The chassis and dimensions(track width and wheelbase) of both the US Land Cruiser and GX550 are the same as the 300 series/LX600. I think even the axles and(in the case of the GX550) the entire powertrain is the same as the 300 series. The 150 and 200 series had extremely clear differences and were entirely different platforms.
Is there actually meaningful differences between a 250 and 300? Are the chassis substantially different despite being the same dimensions and both based on TNGA-F? Because, at least on paper, it seems like the only major differences are the engine/transmissions and different sheet metal. And it terms of components, it certainly seems like the GX550 is more in line with the 300 series than the US Land Cruiser. EKDSS, TTV6, 10 speed, etc. I dont care what they call it, but the GX550 seems to be the US market's version of the 300 series that the rest of the world gets.