Make sure the dealer did not include the "Sun&Sound" option for $2,000. In this case, the price would climb up to $27,976.58 with 6% GST and A/c tax which is Federal ($100). Including dealer admin fee (if any), license etc it could reach or go over $28K.
Go line by line with the salesman, having done your home work. In my experience most of them don't know squat about the cars they are selling, options, prices, etc