In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Crown are reminded to check the back seat if they opened the rear door before starting out. The A4 doesn’t offer a back seat reminder.
Over 200 people are killed each year when backed over by motor vehicles. The Crown Limited/Platinum has a standard Parking Support Brake that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The A4 doesn’t offer automatic braking for stationary objects directly to the rear.
The Crown has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. A system to reveal vehicles in the A4’s blind spot costs extra.
To help make backing out of a parking space safer, the Crown has standard Rear Cross Traffic Alert and Parking Support Brake on the Limited/Platinum automatically engages the brakes to help avoid a collision. Audi charges extra for Rear Cross-Traffic Assist on the A4.
The Crown’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The A4 doesn’t offer a driver alert monitor.
Both the Crown and the A4 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, rearview cameras and available around view monitors.