I have been aware of Arrival for about a year now. They are quite secretive, or at least were. Their main idea is the electric skateboard that you can bolt on anything you want from delivery vans to people carriers I presume.
Interesting to note that CANOO is proposing exactly the same idea (as far as I understand), is merging with a SPAC and plans to start deliveries roughly the same time as Arrival.
With Hyliion, Workhorse also in the market for electric vans is there any space left??? Tesla can easily introduce an electric van and Nissan already produces quite good range of electric vans too.