It is a well known fact that Sport utility vehicles (SUVs) tend to roll over more frequently than other vehicles during foreseeable accident collisions and during normal turning. When you compare a regular sedan passenger car to an SUV, you will find that an SUV rollover accident is far more likely to occur than the regular car. Why do SUV rollover accidents occur? This is because an SUV has a significantly higher center of gravity, thus subjecting the car to "tipping over" because it is top-heavy.
Since the typical SUV is usually taller than a passenger car, but has a similar width of wheelbase, it becomes top-heavy. As a result of being top-heavy, any sudden maneuver or even a moderate speed tight angle turn, that does not pose a risk of rollover for a regular sedan passenger car, poses a significant risk for an SUV rollover and can cause in fact an SUV rollover accident.
Additionally, in order to save weight, and to try to decrease top-heaviness, on an already heavy vehicle, the typical SUV manufacturer has lightened the roof. As a result, the weak roof provides insufficient crash protection, and thus puts SUV occupants at a high risk for death or paralysis when an SUV rollover accident occurs.