A fortnight? Pah!
I had a Rover 200 for a week when the head gasket went and I had to scrap it. It had only cost £300 and I hated it anyway, so apart from the inconvenience I was glad to see the back of the heap. I wasn't surprised when Rover went bust a year later, it was a detestable thing to drive.
A week ? Pah!
I needed a car to travel between Nottingham and Bingham for work circa 1976. I brought a rather old Austin 1100, the owner had spent a lot of time painting the underside with underbody seal, which at 17, I thought was a good idea.
1 hour later....
it dawned on me what I had done in my naivety. The subframes felt like they were going to fall out. I gulped and took it back to its former private owner, who ga e me my money back, no problem.
Shortest time I've ever owned a car. 1 hour