why the super?

In the simplest terms, the Super was designed to corner. The front track is wider than the rear (unlike the narrow front end Standard) and the Super also has negative roll radius steering. All this equals a car built for the twisties, the Standard is a good light car for straight line drag racing. Two different cars designed to do two different things. Keep in mind that the Porsche 944/924 suspension was based on the Super's suspension, that in itself should answer your question. Now as for looks, that's a matter of personal taste.