The year is correct, but not the car, the Plaza being not a showcar, as we've established, but part of the production model line.
EDIT: As you are rather close, this puzzle is locked for you one week.
I know its long and that some will scream their head off, but I'll soon move it to the experts, and I don't want the pack of wolves there to deprive you of your prey. You'll be one of hem soon anyway.