sleepers....how fast and how plain before it is one?

There's a sleeper. You wouldn't expect that from that Valiant.
but it wouldnt out run much of anything today. back when...sure i would agree fully. but in todays world of fast cars out the factory gates. it is much to difficult to spot a fast car vs a monster fast car. even with wheels and a cage it is hard pressed to know for certain. if you are dealing with a car like abodyjoes or one like mine with big twin turbos and 1000+hp street killer