I don't know if you guys have seen this before but in 1934 the Tatra Type 77 managed a
Cd of 0.212, better than a honda Insight, better than a prius and only just behind the EV1. And the car is really quite beautiful:
So what have we been doing for the past 74 years that we can only beat that Cd with 3 concept cars and the ill fated EV1! Imagine the same shape today with modern material and a efficient 4 cylinder motor... ah what could have been!