I don't know if you mean indestructible as in visually or straight up invincible and cannot be destroyed. Either way, server's not freeroam. There's chases and destruction going around and part of that relies on visual cues and vehicle wreckage/breakdown that keeps the CnR essence alive. Couple of problems could also arise from this: vehicle visuals being misleading, it creates confusion, and it just ain't fun going around in a car that looks perfectly fine but is actually an inch away from dying.
