In todays trend used car showroom is came in markets and why not?
People are preferring used rather to buy brand new car to avoid big investment.
But people should keep in mine
Ask for original invoice because car is elderly purchased and that time price was low but preowned car owners asking price current ex showroom price.
Like 2011 Car price was 400000 but now in 2017 the car price is 550000 and seller ask for 300000 after 7 years of run.
So always asked for old invoice and negotiate accordingly.
best of luck.