I reckon used car salesmen have been cut out of a mould - I have met heaps of them, and they are all alike. Sleazy, spinning tales (telling lies), saying anything in order to get the sale, then doing their best to get rid of you as soon as you have bought the car.
We just bought a car from a 'reputable' dealer - and have been unhappy with the overall process. We're actually happy with the car - just not the journey.
To succeed in business - you have to make two people happy, your staff, and your customers. If either are unhappy, you may as well kiss it goodnight. I make it my mission in business to have happy, satisfied customers - wherever it is reasonable and in my power to do so. It is a tragedy that not all other business people think the same.