For enhanced safety, the front seat shoulder belts of the Cadillac XT4 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Buick Envista doesn’t offer height-adjustable seat belts.
The Cadillac XT4 has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Envista doesn’t offer knee airbags.
Over 200 people are killed each year when backed over by motor vehicles. The XT4 Premium Luxury/Sport offers optional Reverse Automatic Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Envista doesn’t offer backup collision prevention brakes.
The XT4 offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Envista doesn’t offer all-wheel drive.
The XT4 Premium Luxury/Sport offers an optional Surround Vision to allow the driver to see objects all around the vehicle on a screen. The Envista only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.
To help make backing out of a parking space safer, the XT4 has standard Rear Cross Traffic Alert and Rear Cross Traffic Braking automatically engages the brakes to help avoid a collision. Buick charges extra for Rear Cross Traffic Alert on the Envista and the Envista’s Rear Cross Traffic Alert does not include automatic braking.
Both the XT4 and the Envista have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems and rearview cameras.
The Cadillac XT4 weighs 578 to 852 pounds more than the Buick Envista. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts. Crosswinds also affect lighter cars more.