This is one of the coolest and most underappreciated 'modern' cars in terms of the engineering that went into it.
One of the lowest drag coefficients ever for a production car, extremely light weight, full aluminum unibody so you do not have to worry about rust, it is small without looking like a caricature of a car, and it gets amazing mpg even with the battery pack disabled or deleted after it inevitably goes bad.
Sadly it was largely ruined by the fact that it is a hybrid. I too have wanted to swap a small diesel into one. Then it would be the perfect car.
I always secretly liked them but was on the fence about buying one because they are not very masculine. Now I really wish I snatched one up a few years ago when there would be several of them on Craigslist going for $2K. These days they are very scarce and sellers are asking a fortune.