You often see details and see what is covered and what is omitted in the agreement.
This will protect not only you, the buyer, but the seller well. if you are dealing with a reputable seller, this should not be a problem for them.
These are used for more than 30 years in the US which is a very long time.
High visibility mirrors help the driver and prevents the vehicle to overcome any mishap.
Aside from that, these extended warranties are completely customized sales and therefore boost the price of your car.
The more surface area it has on the field, the more fuel it takes to get the car moving.