Infiniti Dealership

I purchase used 07 G35 x in 2011, they sold me car as regural price and I ask is this car was involved in accident , they told me we never sell car with accident and after 20 months I decide to replace it , I find good deal in California on my current bmw , they pull out car fax and told me my infinity was in accident in 2009 , I was really suprise that is automatically drop couple thousands on my trade , so if u ever go to this dealer don't buy used car from them , they big laiers , I won't recommend at all .