Does Your 4 Year Old Need a Sunroof?

My sister Sarah flew into Chicago on Friday for a trade show this week, and rented a car to drive up this last weekend. No surprises... we had a great time. She had rented a Chevy Malibu Maxx (which is a boat with no turn radius). It also had a sunroof... over the back seat! Why would you want a sunroof over the backseat, and not over the front seat? Does your 4 year old need a sunroof? (That's just a generic comment... Sarah doesn't have kids).