I saw a quote from a car designer once, I think he was from Jaguar, who said something like (and I’m paraphrasing), “you should be able draw only 2-3 flowing lines on a piece of paper and be able to accurately and recognizably describe a particular car. If it takes more than those 2-3 lines, then your design is bad” In otherwords if you have to have a busy design with cut lines and creases everywhere, it’s not good.

That’s why modern cars like the F-type, Aston DBs, Ferraris, etc, and older cars with curvy swooping lines or even iconic wedge shapes like E-types, 250GTOs, 911s, Miuras, Lotuses, Countaches etc all have such long lasting appeal.

While not all emcompassing, I think there is some truth in that.