By which objective system of measurement do you make this claim? I'm curious.
They're currently the only pure electrics that I know of with a range that will get me to the airport and back without a charge (the Leaf has an EPA tested range of 73 miles). The performance is incomparable. Fit and finish is good. They're expensive, but if we're just talking quality here, I think it can be objectively said that they're the best of that small field.