Does Volvo hold the key to care-free motoring?

The Volvo Red Key

Until vehicles are truly autonomous, handing over the keys for valet parking, or so that your inexperienced teenaged kids can borrow the car are going to remain necessary and often nerve-wracking experiences for many drivers, especially if they've got an expensive car. 

However, what if in those situations and in countless others, such as when the vehicle's in for a tune-up or routine maintenance, you could hand over a special key that guarantees the car is treated with care?