Being the mechanic i am, i bring cars i find back to he garage to keep them out of the acid rain. However, after taking a nap in one car’s backseat, i was damaged from acid rain. I am not sure if the acid rain damages the car, but it definitely went right through the garages roof only in places there were vehicles. Keep up the good work developers, I am enjoying this game every day!
Kevin’s commit on github should do the trick.