Safe n Sound do a travel system. I have the unity capsule which is awesome! I can have DD2 fall asleep in the car and then just carry her inside. She also falls asleep in the capsule when we are out and I can carry her sleeping back into the car for the trip home.

I had a similar one for DD1 and she was in the capsule until 12 months as they are rated to 12kg from memory. DD2 will probably be in hers until then too as I am in no rush to turn her.

Also the resale value on eBay for the travel systems with the unity capsules are pretty good so even if you do spend a bit you can sell it further down the track.