Long story short! DP and i are having a baby. He had a saloon car and decided to change it for a sports car - at the time i said a condition of him doing that was that he had to upgrade my car (mine, a 3-door runaround) for a more practical family car because getting rid of the saloon meant we no longer had a practical car.
Fine. When we started shopping for the upgrade, he suggested that we go halves, which seemed fair because although it's for the family, i'll use it more. So that was fine. We are part exing my car so i assumed my half of the balance would be less the part ex amount. But DP thought the part ex should be knocked off the price and we'd then split what was left. What do you think? It's a bit convoluted but i just wonder what is fair (ignoring the wider issue that we are having a baby and our finances are so separate which is a dilemma for another time)!
With figures to make it easier! Say it's an £8k car and we get £4k for mine. I was thinking that would effectively mean i pay nothing because i've put in £4k from my car. DP thinks we'd knock that off leaving £4k left and both then pay £2k.