1990 Citroën AX Sport - https://assets.dyler.com/uploads/cars/406167/9080414/medium_...

Look at that door handle. Fully flush, NACA profile scoop in the bodywork to insert your finger behind the trailing edge of the door and flick the little lever up to unlatch it.

Give me that, please. I wish I'd never sold my 1991 Citroën AX GT, it was so quick and quiet. Hardly any wind noise, so it must have been very aerodynamic.

1969 Pontiac Grand Prix - maybe not actually aerodynamic, but it does have flush door handles:

https://upload.wikimedia.org/wikipedia/commons/e/ec/1969_Pon...