Which DLC do I need to buy for TDU2 before the Xbox store shuts down?

The Xbox 360 store closes in a few days and I really want to buy DLC for games I already have before I lose the chance to buy it forever. TDU2 has loads of DLC for individual cars as well as car packs that include the individual cars. Which combination of DLC gets me everything without accidently double-buying something?