Thanks ladies, I can't believe how many responses so far.
We actually have a Prado now, we bought it new last year to accommodate my 3 children and I love it sooooo much but unfortunately the Toyota 4WD range don't have anchor points in the rear. They told me we might be able to find someone to make it compliant but as far as we're concerned, if the car doesn't come equipped with the things we require, it can't be safe.
I've rung Mitsubishi about the Grandis and while it does fit 4 seats, there's not enough room in back for pram, which is where we really want it because I hate the thought of it laying next to one of the girls if we were in an accident.
So as you can tell this little gem came as a surprise, and we don't seem to be having much luck. It just seems to me that people with bigger families are a little disadvantaged when it comes to vehicles, the bigger they are the uglier they get. In saying that, once the kids are out of the car seats we will be able to go back to the 4WD's again, it sounds vain I know, I just don't want to give up my Prado.
3 beautiful girls, 4yrs, 2yrs and 10mths