A Model S is pleasing, not beautiful. It reminds me a bit of Mazda's design language, or some of the more Aston-y Fords. It's not a pinup, but it's a nice car to look at.

My first reaction to seeing a Model S was that it looked very much like a variation on a them of a Ford Mondeo - a handsome car but not striking.

Only seen one Model X and didn't think that was nearly as nice looking - mind you it was in white which might not be a good colour for it.

Purely subjective: I love the model S design, loathe the Model X design.

Pretty certain they'll be classics regardless, due to historical and cultural importance.

OTOH, I'm pretty certain a <2015 Model S in working condition in 2035 will be about as rare as a genuine Lancia Stratos is today. They're just not built for longevity, and have a completely proprietary repair tooling and electronics setup. I doubt we'll e.g. ever see a Haynes manual for one.

I've argued prior that Tesla's Model S will be like Apple's MacBook Air - a design that ultimately turned the entire industry on it's head.

I'd say it's nice looking, but more importantly it's iconic.