It's an interesting question to consider because that was basically what the iPhone was when it launched. It was behind the state of the art at the time in many important ways (not having 3G was a big deal), but it was so incredibly far ahead in several very critical ways (multitouch display, 100% touch-based OS, full fledged browser, next level music player) that it didn't ultimately matter.
Now the question is, does Tesla strike that balance? The second question is, can they iterate rapidly and close the gap (which the iPhone ultimately did)?