Roller for my son

We would like to buy him a scooter and have taken some into the short choice. For example, the TBG Bullet, which always appear at the KA or on Moblie: https://suchen.mobile.de/…/details.html?… Since I am very little interested in scooters, my questions are: 1) Can I have the scooter delivered by a forwarder? 2) Could I have the scooter in my passat Kombi put down or runs out the gasoline or does not do well lying down the scooter (because maybe oil runs out or why) 3) I live near Stuttgart, can you have the scooter repaired there or do I need a special TGB dealer? 4) I mean to have read something about a service after 10 000 km. Does this have to be done or who does it? Unfortunately, many of the offers are very far away, so I can’t see the scooter before. But my taste with one the owner has left me a good impression, so that I have to take the risk and if possible commission a forwarding agent (if possible). Thank you Flitzer