How many miles does a car have to have before a dealership will consider it a “loaner”?
Is it even purely about miles on the clock or is there a separate criteria that designates a loaner?
Looking at a car with 104 miles on the clock which is more than what I would expect to see on most new cars (less than 20 seems standard)
Thanks to everyone in this amazing community
My crystal ball 
predicts someone will reply that this has been discussed ad nauseum and the oracle shaped like a 
will yield you results aplenty.
If you’re the kind of person that is concerned about 100 miles on a new car, I’d steer clear from a fart car, I mean loaner.
Not concerned - the opposite in fact - hoping that 100+ miles might mean that it is classed as a loaner for the purposes of getting a lower payment 
The short answer is: it depends.
The long answer is: it depends on the dealer, brand, age of vehicle, etc.
Use cargurus.com and sort by Oldest Listings First. Normally you’re more likely to get better deals on vehicles that have been on the dealers lot for longer, or were marked as demo/loaners.
I don’t think 100 miles is enough for a loaner, most of the ones I have seen are in the thousands but theres a first time for everything.
For Mercedes Benz, Under 10K for a loaner vehicle. Demos can be anywhere. If a car has 104 miles, it just means that it has been either dealer traded from somewhere far or other things
dealers will discount a loaner with a few miles less than a loaner with a lot of miles. So even though technically it’s a loaner, it doesn’t necessarily mean your’e getting a good price.