Car appreciation... the aesthetics, the engineering, etc

Yes maybe boring, that's the car we need! It's an estate, perfect boot size for all baby gear needed. If I do works at home I can carry shit on the roof. It's underpowered and accelerates like a tractor, which I actually don't mind at all. We mostly don't use it. A weekend now and then to visit Louise's parents outside London (under two hours drive), and to France for holidays once, maybe twice a year (Normandy, an hour drive from harbor)... I'd be surprised if we did more than 3500 miles yearly. Hence the leasing option not cheaper in the long run. Hopefully our old car with moderate use should remain a cheaper option per mile over few years. Not too stressed about the abuse it may get on London roads compared to a new fancy car.
It hasn't got mini cab mileage, just 75000 miles. Yes previous owner didn't look after it so there's rust to underbody, my fault for not checking thoroughly, but i hope it's manageable using a cheap solution like @lynx suggested, or even good old oiling... It's about slowing rust propagation (as far as I can tell it's not very deep), not about keeping a car pristine (everything other that underbody is actually pristine, and has hardly aged, everything works as it should electronically/electrically, etc)
I'm sure cars can be fun, but if/when I have time in my life for fun things it's going to be dedicated to do a bit of cycling, or take the motorbike out with usual peeps from the relevant thread...