At first glance, it seems as if you were so rich that you are planning to sell a bmw that was just bought a few months ago. Again, it seems as if you were so so rich that you want to buy another luxury brand car. But your pocket is actually way too shallow. I wouldn't think it's a good idea to live beyond your means. Perhaps it's much more practical to keep driving your BMW and start saving money for your future wedding and kid-raising expenditures. Believe me, they will definitely cost you a loooooooooot.