i cant believe what your writing you "dont see the point" you are responsible for the child so its safety at all times is important in that short trip do you think an accident may not happen or wont be as severe because its your car. i just dont understand what you are writing safety is the most important thing i cant say it enough with your brazen attitude i most certainly would not let you look after any child of mine would you be happy with an inadequate seat for your own child and put money before safety or the fact "they will only spend an hour max a week on short trips" my friend is a traffic branch officer and was called to an accident the parents thought it was safe to allow a toddler to sit in the car and not be fastened in as it was a short trip when my friend arrived the mother was sitting in the passengers seat with her decapitated child in her arms. a car pulled out on them and the child was standing between the seats on impact the child was decapitated by the sunroof. if you were to be stopped by the police and found to have an improper seat you will be fined and the cost of the fine will probably be more than the difference of the seat prices. as a police officer i cant stress this enough and hope you see sense