Amazon has added a new option to its Amazon Key service for Prime members: in-car delivery, which allows drivers to place packages inside a locked trunk or elsewhere in a car that is parked in a publicly accessible area. The Amazon Key In-Car delivery service is available at no extra charge to millions of Amazon Prime members who drive certain cars. “We believe that using in-car delivery for high-value items that you don’t want sitting on a front stoop or in the rain is a strong benefit for our customers,” said Volvo spokesperson Jim Nichols.