Rolling out a new shipping option in 37 U.S. cities this month, Amazon wants you to give delivery workers access to your vehicle’s trunk to drop off packages. Called Amazon Key In-Car, the service is similar to Amazon Key in-home delivery in which a worker is provided access to your front door via a smart lock.

To use this feature, you just download the Amazon Key app and link it to your vehicle. At this time, Amazon Key In-Car Delivery supports most 2015 model year or newer Chevrolet, Buick, GMC, Cadillac, and Volvo vehicles with an active connected car service plan such as OnStar or Volvo On Call. It’s likely more brands will be added in the future.

When you shop on Amazon, you check “in-Car Delivery” at checkout. Amazon will send an email reminder for the delivery window and will delivery the package if the car is in a publicly accessible area. The user also received a notification when the package is delivered.

This type of delivery service would probably be ideal for anyone on the go all the time. In-car delivery is currently free to Prime members. Regarding location privacy, Amazon claims to only obtain your vehicle’s location on the day of delivery as needed.

You can check to see if Amazon In-Car delivery is available in your area using the zip code checker here.

Amazon wants to deliver packages into your car’s trunk