Practicality-wise, I'll get a
Toyota LC for 4m and save the other million. You still get the same hulking SUV at less amenities.
- get the pajero bk 3.2 Did kung practicality rin lang. You save a further 900K. hehe
If she's going to spend most of her time in the backseat, cross out the Cayenne on your list. It still ranks high on my wanted SUV list but rather than seeing your tita smile, yun driver mo ata yun nakangiti eh
Ask if she wants a big SUV or a big-big SUV first. Audi Q7 is nice, but haven't driven nor researched about it extensively.
Lexus LX gives off a very floaty feeling. I'd recommend it over the Range Rover if you won't be doing any off-roading. LR-RR's maintenance is a pain in the ass. I'd go Toyota quality here. Personally, I also feel it's overpriced compared to the Toyota LC (it's like Camry vs ES350). But not if you compare it to the likes of Range Rovers.
If it was me, I'll ask if she really needs a SUV. I expect these types of persons to be roaming around in Makati, Greenhills, Ortigas or Taguig. Not Manila. So floods shouldn't pose a significant threat. If then so, I'll buy an ultra-luxury sedan instead. Lexus LS460 would give you the best bang per buck. But the coveted MB S-class isn't far away either.
Already ridden a S-class before in Hong Kong and all I can say is that I can screw somebody at the back and still HAVE space. LOL!