I agree climbingpenguin....
Ds will never, ever, ever sleep anywhere but his cot. Ever.
I once went out for the day when he was about 4 months old and he went a record 12 HOURS without so much as a sleepy blink despite being pushed around in a comfy pram and then driven a fair way home in a car seat.
He has followed this pattern and so now I make sure I am home for his nap otherwise he won't settle for bed. I am very lucky in that he still has two 1.5 hour naps at 14 months and sleeps 12 hours at night going to bed at 6pm.
I'm not messing with that!
Dd was exactly the same and she is now 10 years old.
Yes it can be a bit restrictive but we can still go out, we just go out early and make sure we are back for nap time!
I could literally wheel him round in a buggy all day and he wouldn't sleep. Not all babies sleep in a buggy or car.
I also got told to put him in a sling when he was very tiny as babies love them.... not my baby! Fucking hated it.
All babies are different.