Tatra 623
 The Tatra 623 was a Czech two-seat rear-engined car developed for rapid assistance on races and in normal operation. At first it was created by rebuilding the Tatra 613-2 vehicles by rescue organization AMK Narex (since 1992 Narimex). Tatra for this rebuild prepared the basic documentation and let it approve rebuilds then took place in the Tatra service and mostly in collaboration with Narex and Kovoslužba organizations.