The things are in the car now = 东西现在都在车里／上.
你那句“The car are in the things now" 是不正确的.
首先,car 是指一辆车,所以不能用"are" ,应该用"is".
就算你那句是用"is",还是不对,因为
The car is in the things now = 车现在在东西里头.