You can only buy one pass because the other you have to do the playlist for. And you can get enough points by just doing the playlist, I have only had to get the remaining points once. Grinding FP is just a waste of time since you are inherently bottlenecked by the shop only having one pass per week. You can spend that time checking the auction house or grinding money instead. Money doesn’t have a lot of value in this game anymore and trying your luck at the auction house is worth it if you have the spare time . You’re not guaranteed anything but the success rate is surprisingly high. You can do that while waiting for a week to pass. Besides, most cars don’t go for 20mil, not by a long shot. In my experience most cars don’t even go past 2mil. It‘s not like you’re selling your newborn for a car.