if you mean tacky as in sticky, deffo the Ford. But only because bits fall off and have to be glued back on

Personally I think RX7's can be a bit tacky looking... there's a green one lives on the A3 up near the Robin Hood roundabout and it's hideous....

But then 10 years ago people thought Saffs, Escorts etc were a bit pikey so who knows, it's all subjective.