Need some tips when selling a car privately
We haven't made up our minds yet but if we do get a small SUV, we might list our 2011 Accord Coupe I4 5AT with extended warranty until December 2018 for sale as we will not be requiring three vehicles when there are only two drivers in the household. The second car is a 2002 Civic 5MT that is worth very little and will not be depreciating in value. 
I know there's autotrader as well as kijiji but was wondering how do we avoid wasting our time with tire kickers? I don't like the idea of selling to a dealership because they'll likely low ball us $2-3k less than the best private offer and if that's the case, we're likely looking at proceeds between $12k and $15k but is there a point in trading the car in or should I shop it across a few dealerships?
The car has given us very little problems and I'm sure it would be years of worry and repair-free for the buyer.
If the offers are too low, we'll definite just keep it as our daughter will be turning in less than two years and I'm sure the car will hold up by then.
Is there any nice way to tell a prospective buyer not to floor the gas pedal? What other no-no's should be established prior to a test drive and what kind of identification should be required of the buyer (a quick look at the driver's license, etc.)?
Many thanks in advance.

I know there's autotrader as well as kijiji but was wondering how do we avoid wasting our time with tire kickers? I don't like the idea of selling to a dealership because they'll likely low ball us $2-3k less than the best private offer and if that's the case, we're likely looking at proceeds between $12k and $15k but is there a point in trading the car in or should I shop it across a few dealerships?
The car has given us very little problems and I'm sure it would be years of worry and repair-free for the buyer.
If the offers are too low, we'll definite just keep it as our daughter will be turning in less than two years and I'm sure the car will hold up by then.
Is there any nice way to tell a prospective buyer not to floor the gas pedal? What other no-no's should be established prior to a test drive and what kind of identification should be required of the buyer (a quick look at the driver's license, etc.)?
Many thanks in advance.