Buy an electric bodaboda from yubabikes. Has a shimano mid drive that one can pedal unpowered w/o drag, and a 9 speed shimano rear instead of the kiddie grade 7 speed the rad has.
I have a 2017 pedal bodaboda (picture left) that I put a 1200 w geared hub motor on. Had a direct drive 1000 w motor previously, hated it. I like the 21 speed SRAM shifter for riding unpowered. I like having a 17.5 AH battery ($630) for longer trips if my hips are up to sitting that long. I don't run a car anymore.
Rad has a 500 W DD motor. Don't take a geared hub on a 15 min 10% grade, they will overheat & burn up. I have 4 15% hills and 73 others in my 30 mile route to summer camp, but they are 100', interspersed with downhills. I carry 180 lb me + 50-60 lb supplies outbound (uphill). Motor is for headwind days, getting really obnoxious now that the globe has warmed. I ride unpowered when the wind is okay.