When I am trying to activate wrecked cars with empty hands game says "You need to use a crowbar or a wrench". So I crafted crowbar. But game still says "You need to use a crowbar or a wrench" when I am using crowbar on wrecked car. Tried few types of wrecked cars, but every time game says same thing). Got "Scrounger" perk - so I don't know, why it isn't work properly :(
(http://i9.pixs.ru/storage/5/9/3/screen2017_1091675_24926593.jpg)
(http://i9.pixs.ru/storage/5/9/5/screen2017_7354405_24926595.jpg)
(http://i12.pixs.ru/storage/5/9/6/screen2017_4038960_24926596.jpg)