Depends on the software loaded on the controller and the power rating of the hub motor, 350w, 500w, 750w, 1000w; they all be tuned to have different power output from the controller.
Peak power output is what most buyers are interested in.
Sidecar rigs are very different animals than trikes, some sidecar may require upper body strength to maneuver at speed.
Less expensive e-trikes are just becoming available. Check out the threads below:
$1499 for an e-trike, I might have to get one just for kicks. Folding frame makes it even more enticing. https://electrek.co/2023/01/09/lectric-xp-trike-electric-tricycle-teaser-revealed/
$2499.. is a bit more than I'd like to spend on a e-trike. I like the short wheelbase, looks to make it really nimble and able to make tight turns. https://electrek.co/2023/01/11/radtrike-review-testing-rad-power-bikes-electric-trike/