It is designed for the inexperienced mechanic, someone who has never had any involvement in auto mechanics.
These things will include the condition of the brakes, tires, hoses, belts, etc.
This is a simple way to shop the different options and to combine what is wanted with what can be granted.
Also, with the purchase does not have to worry about the car back to the dealer, it is the option to keep it or trade for something different.
Finally, you'll want to make sure you're completely covered behind the wheel if you need to make costly repairs.
When you have a plan which restrictions where you want to take your car for maintenance tasks, which could become a dilemma if you experience a malfunction while you travel or are away from a repair shop particular.