it is the unique blend of design, tech, and qualities.
karim habib made a design, that reminds me of so many citroen cars of the past. the a pillar and front window frame define the highest point of the car like in the ds and the sm. those head lights are a mix of the ds (2nd series after 1967) and the gs. the way the c-pillar is having an optical gap (floating roof) reminds me of those c-pillar-integrated turning lights of the ds and of the sm label on the c-pillar leading to the back window... the 800v tech and a 310 mile / 500 km range make it a bev that comes close to an ice car. the price is ok for what you get. i expect it to be put together far better than a tesla and i am sure mr. biermann and his team did a great job to make this car stand out in the r&d section...
Finally, videos that show the rear cargo area with the hatch open (the German videos posted above)! It's nice that you can put the seats down with an electronic switch in the rear cargo area, and that the seats fold flat. These German videos are really quite helpful.