He might need a key if I'm away and he needs to take ds2 to his activities, but only if he gets the train to our house. Most of the time he drives, so he wouldn't need a key, no. He might not even expect to take a key anyway, but to leave one at our house. He won't just want to see the car though, he will want to drive it and inspect it and probably nitpick at its faults because I've bought it and he wasn't involved in that. And I didn't text him a photo of the car after I got it actually. It's more that he refuses to let me see his flat so I feel like I don't want him going near my car, but that might be childish tit for tat behaviour, I'm not sure. Maybe if he asks to see it I will give him the key and go do something else.