Ford cosworth RS5000

For most car-conscious folk of a certain age the sight of a whale tail still has its own magic.
No mere spoilers, these excessive peacock-fan displays signal a car with too much power to be held on the road by the weak fundamental force of gravity. Porsche 930 turbos needed them to correct the wrong-headedness of having all that power thrusting from behind the rear wheels and Sierra Cosworths also needed them for genuine road-holding reasons.
When Ford launched the bravely rounded Sierra in 1982 to replace the boxy Cortina, its blobby shape and expressionless face wasn’t universally loved.