My preference would be ratcheting tie downs over the wheels.

https://www.wikihow.com/Tie-Down-a-Car-on-a-Trailer#:~:text=Hook%20the%20ratchet%20strap%20onto,strap%20onto%20the%20D%2Dring.&text=D%2Drings%20are%20small%2C%20inset,each%20corner%20of%20your%20trailer.

If memory serves, there were originally factory transport hooks, either a metal eye or a heavy plastic one, same as used on the later 700/900s. I was once told the plastic hooks were often removed by dealer service during prep as they weren't designed for use by tow trucks.
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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now