I tend to let bubs sleep in the pram if he is tired. I cover the front with a BIG THICK wrap/blankie and let the motion put him to sleep. By covering them u are blocking out the stimulation which can cause over tiredness later. I find it works well for me. If I get home and he's sleeping in the car, I take him out (yes that usually wakes him), wrap him, snuggle a min or two and put him back to bed. He settles again pretty quickly
Each to their own tho....