How can I stop my sims from using it without actually deleting it? I need it for a challenge, but even when I put it in the family inventory they KEEP GETTING IT BACK OUT! Even when I click on another vehicle in their inventory and select 'visit lot', they still use the Woo Woo 4000. If I put it in another sim's inventory in the household, they STILL use it! I didn't make it preferred vehicle, and there is no option to make the other vehicle preferred. Help!
Edit: resetsim does not work; resetting the vehicles does not work; clicking on them whilst placed on the lot does not work; restarting game and clearing caches does not work.