The 400 doesn't look like it has a true ISO DIN form factor. The 2096 was also not true ISO DIN. The 2096 had built-in non-removable trim which violated the ISO DIN form factor. That made the 2096 very difficult (to imposible in some cases) to fit as the second ISO DIN unit in a double din opening.
I hope the picture is inaccurate and that the 400 will have a true ISO DIN form factor with OPTIONAL REMOVABLE trim like every single other ISO DIN head unit sold in the world today (i.e., follow the standard, don't violate it). This is extremely important in todays vehicular mobile applications (for mounting in other than monster trucks and old '70s beaters in any case).