We have an 04 Outback, and are expecting our third child in April.

With a great deal of help from a helpful baby shop owner, we were able to get three car seats in the back for our 5 y/o,4 y/o & newborn. Previously we've been using two Maxiriders, and there's NOOOOO chance any third would fit with those two!

It seems to fit (although rather snugly) with a Safe n' Sound Compaq and two Infa Vario Kid boosters. There's no compromise on safety - the Infa Varios are the highest rated boosters for safety based on the NRMA tests (even higher than the Maxiriders). The only issue we have is with putting the seatbelts on, as it's very squashy. We're looking into buckle extenders, which raise the seatbelt buckle/button a little higher, but we still have to figure out at the safety issues of those. Once 5y/o gets big enough to move from the booster, it shouldn't be as much of a problem. Certainly a lot cheaper than buying a whole new car...

I'd recommend going to a specialty baby shop and asking them to try the seats across the back before you purchase. Some of the privately owned shops are really helpful, and they're happy to go out of their way to make sure you've got the right solution.

We've only just got this, so I'll update you as we see how it works out in practice...