A Michigan company that makes self-driving food delivery vehicles will begin testing them in Ann Arbor in January with patrons from four restaurants.

Ann Arbor-based Refraction AI makes the REV, an autonomous robot that's five feet tall, with wheels and a fuselage that can hold delivery bags.

The company will begin using its REVs on Jan. 3 to make meal deliveries from four restaurants to a test group of 300 customers in Ann Arbor.

The Detroit News reports Refraction AI hopes that its electric, 100-pound REV can make food deliveries for half the cost of existing delivery services like Grubhub.

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