I spawned 10 random cars on my server and today someone informed me that there was about 50 on a frozen lake. I didnt even spawn one on a frozen lake anyways let alone 50 lol. I put a picture in below so you can see what i mean. 

https://imgur.com/gallery/xJQBZ8r?fbclid=IwAR3Pknd3cUgQZeeuzZJ82BDeIYi_qo3cNofPlh7nq7Z5STqxWRw3T5IwJQA