it annoys me when salespeople are like that. we've had similar recently when looking for a car and it just pisses me off. you either wanna sell stuff or you don't. stupid people
aaaanyway, once you've got one to actually speak to you i would just go in with saying exactly what you want, and how much money you have.
be cheeky, it's ok,. the worst they can do is say no.
so, "we're looking for a volvo v70, up to a year old, we have £10,000 to spend. can you show me what you've got"
or something along those lines.
then, you find the one you want, fall in love with it. tell them how much you like it but you're really not sure you like it enough to spend that much money. what's the best price they can do you?
I am lucky enough to have a dp who will be very frank with salesmen and just say "ok, I like the car, the price is good, but what else will you give me to make the sale right now?"
they DO want to sell stuff, even if they give the impression that they don't. they know you have plenty of other options, and they are able to offer additional extras at little or no cost.
you just have to be brave enough to ask