I've got one & love it :Dmake sure the head gaskets are ok as it's costly to have them done as I found out after the warranty company put it down to wear & tear :shock:
:evil:check the condition of the rad & have a close look at the front prop UJ's, not costly to do your self but if sus get them replaced if buying from a garage.
Main probs i've had have been big water leeks from the sunroofs but a good drop of black silicone has solved that :clap: 2x head gaskets & front prop UJ's (£45 for 3 UJ's)
If it's a 7 seater your looking at it will have air bags as all 7 seaters do where 5 seaters are coil sprung IIRC :roll:
Found mine not to bad on petrol just needed to adjust the way I drive to get better MPG ie now cruise at 55-60MPH & on a nice run get 24mpg :clap:once a week I put it in sport mode & give it some stick to clear the cobwebs out