Hi, at 6 weeks I used the advantage of naps being more frequent and getting out and about.
Really for us I'd time the car ride/walk etc after feed and to coincide with nap time.
Some babies nap well in pram and some nap well in the cot, both of my kids were/are cot nappers so if I go out I expect short naps but DS1 is 4 so not relevant and DS2 is 7 months next week so I try and do 1 cot nap at home and then accept if I need to go out the next nap will be short (not always)
I'd say go out at this age and enjoy the freedom as its long days stuck in for all naps in the cot, maybe try and do the morning at home and go out in the afternoon if you want a balance of both.