Some car salesman are knowledgable, some are not. I think he was trying to cut down your trade-in value.
Anyway, I had a nice experience last summer when my wife and I were shopping for her car. We were cruising through a used car parking lot in my SVT and a salesman stepped in front of my car so I had to stop. Then he knocks on my wife's window and I roll it down.
"You guys need any help?"
"No thanks. We are just looking."
"What are you looking for?"
"Maybe a small four-door."
"You going to trade this thing in?"
"pshhhh. No."
"Come on man. I need some cars for the high-schoolers."
At that point I rolled the window up in his face and sped off. I was trying to get his foot with my rear wheel but he kinda jumped back.
