They are testing "ordinary" vans as well. They purchased 6 Canoo vans[0] for testing and announced plan to buy 9000 Ford E-Transit vehicles[1] earlier this year.

[0] https://www.press.canoo.com/press-release/canoo-reaches-agre...

[1] https://media.ford.com/content/fordmedia/fna/us/en/news/2024...