Cars

I was having a competition with my neighbor to see who had the most cars after 6 months. The first month my neighbor bob crashed his car so he didn't have one, and I had 4. The next month we both bought one new car. The next month bob bought a new car and I crashed my car. The next month I let my cousins borrow two cars and they crashed them both, while bob won a car in a raffle. On the fifth month, I bought another car at an auction, and so did bob. On the last month, Bob bought one more car, and my cousin died so I inherited 5 new cars, ending with bob having 5 cars, and me having 8. (0,4) (1,5) (2,4) (3,2) (4,3) (5,8)