FlatSix911
Porsche 918 Hybrid
Cars are like people. Lean and slender is desirable over fat and top-heavy. Humans have desirable aesthetic cues, and so do cars. I refuse to believe we like cars because we're conditioned to. Sports cars for ages have been considered the best-looking cars, and where do many sports cars have their engines? That's right, not the front. Yet they still have long and lean hoods because it's sexy.
Check out the golden ratio. It's present all over and people have done studies that confirm stuff with the golden ratio is more aesthetically appealing from people to architecture to cars to even logos for car-makers. Now, don't get me wrong, I don't think Model 3 is ugly by any stretch of the imagination, but where a Model S is a supermodel, Model 3 is that chick with huge knockers and a pancake ass. Or thunder thighs. Or a spare tire. Still good-looking, but something doesn't seem quite right.
A perfect example of the Golden Ratio ... and I still have the Model 3 on order
Images from the MyTesla order page: