I have the ford territory, its a 2008 model. Plenty of room for car seats, although I really dont think you would fit 3 across the 2nd row of seats & the back row is only a 2 seat but I'm pretty sure you could fit 2 in the back row & 2 in the 2nd row. Would be annoying to get to the back row though without being able to fold down the seat infront if that makes sense?

We looked at the turbo diesel when we were buying ours, is the new diesel different to the turbo diesel? XH really wanted the turbo but I just couldnt bring myself to spend the extra (ours was $60,000 as it was with the added extras we got put in!)

Good luck, it is a big decision, you're doing the right thing with researching before you buy