For enhanced safety, the front and rear seat shoulder belts of the Land Rover Range Rover have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Alfa Romeo Stelvio Quadrifoglio doesn’t offer pretensioners for the rear seat belts.
Both the Range Rover and Stelvio Quadrifoglio have child safety locks to prevent children from opening the rear doors. The Range Rover has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The Stelvio Quadrifoglio’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
The Range Rover offers an optional Surround Camera System to allow the driver to see objects all around the vehicle on a screen. The Stelvio Quadrifoglio only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
Both the Range Rover and the Stelvio Quadrifoglio have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available blind spot warning systems, rear cross-path warning and driver alert monitors.
The Land Rover Range Rover weighs 682 to 1412 pounds more than the Alfa Romeo Stelvio Quadrifoglio. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

