We helped him into it, and he's barely spent a second out of it since. We were a bit worried that it would take him a while to work out how to climb in and out of it, but about 5 minutes after he'd first sat in it, Jamie took J-cub out of it to give him his tea, left him for a second to get his cup, and came back in to find J-cub sitting back in the car with the door shut.
His legs aren't long or strong enough yet to propel himself forwards, but he's enjoyed using it as a highchair, sitting it and spinning the wheel, reading books while leaning out the front window, climbing in the wrong way round, standing on the seat and leaning out the front window, sitting on the parcel shelf, climbing out of the door, cruising round to the other side, and climbing back in through the window.
I was very cruel and put it in the garden, after I got sick of having no room for anything else and after J-cub got stuck in the footwell for the hundredth time. I'm just waiting for him to start pointing out the back and signing 'car'. In the meantime, I've been taking him out every time it's not raining for some driving practice.
Today's Look Up photo was an easy one - he leant out the front window to check out the ceiling (just in case there was anything going on up there). AMAZING face :D