Yes 3 hours, but that's only the first day, zero hours after. So here's what I do, post all 200 cars on CL by hand to start, finish templates, get them all online, etc. Then I take my hand-developed auto software which takes the online ad, copies, it, deletes it, re posts it, does the capcacha, etc. So the first batch of ads, I'm doing all myself and 3 hours to start sounds about right. But after they are posted, it's all automatic from there.. The only thing that keeps my busy is when a cars sold I have to remove/delete it, and when a new car comes in, I have to add it in as well.. Somewhat time consuming to keep up. Also the biggest problem I was having (fixed now) was that it was posting cars from a bunch of dealerships with different sites/locations. So the dealer group would move a car to another store and it would mess the links up. Then I'd have to repost the ad, and doing that constantly was really frustrating.. So to fix that, I did a feed for all the store inventory into one site, so the links never break regardless of where the car goes.
Happy to say now that after doing tests on CL tonight everything is running very smoothly. Ps. I maxed everything out on a few tests a couple months ago, CL lets me post 200 ads per day to the top and they all stick. Using a phone verified, e-mail verified account, etc. For now I'll stick with doing about 20-30/day. Also this account has been going strong for 3 years, no issues, so not really worried about it.