x2 on jwmII's advice:
I have owned expensive flashlights and the cheap ones. In my experience, the best thing to do is hit HF, Tractor Supply, or even Office Depot, buy a bunch of the el cheapo anodized aluminum flashlights. I toss one in every map pocket, cupholder, or container in my vehicle.
The most important thing is having a flashlight ready to go when you need one. The cheap ones may not throw 2000 lumens... but any lumens is better than none, and having quantity over quality is important.
Aluminum flashlights suffer a lot of fates. They get borrowed to never return. They wind up being placed somewhere and forgotten. The batteries leak rendering the device unusable. In any case, losing a $1 unit is a lot less sorrowful than a $100 light.