I live out in a village near Midsomer Norton/Radstock. I used to work in the centre and had access to a parking space, On average an hour. DH works in Fishponds and he gets in for 7am and has a 40 minute drive, it's worse coming home as he seems to hit school let out and then early rush hour.
However, I love where I live. We are right on the edge of a village, but 5 minutes away from the two towns I mentioned above, by car, or a 40 minute walk (pregnant speed). Some great local facilities (pool, library, children's centre) and a wide variety of toddler groups.
One thing I will say for living out of a city is the buses can be crap and without a car it can be rather lonesome.
For example to get into the centre, I can catch one bus, but because it goes around the villages, it can take 2 hours to get into town, yet driving it can take me 40 minutes.
Chew Magna is nice, popular commuter village to Bristol, I know lots of people who live there and love it, but prices can be high.