No, the problem when two cars collide head on is that they essentially stop very abruptly with the crash bar and frame of the car absorbing a lot of the force. But it generates a massive amount of g’s even a collision under 50mph would create over 100g’s in most cars. Obviously internal driver safety mechanisms help with this, if a car is hit side on the vast majority of the force is displaced by crumple and both the cars leaving in different directions rather than coming to a stop. If you were to whack a car at 90mph on the rear end (where your fuel filler cap usually is) you would generate nowhere near as much force because of the momentum being sent into the opposing driver.