Looks like liquid piston have some partnerships with the US Government, but targeting small, lightweight generators on drones to recharge batteries, not motive

Looks like liquid piston have some partnerships with the US Government, but targeting small, lightweight generators on drones to recharge batteries, not motive power for vehicles: https://www.aviationtoday.com/2022/09/13/u-s-army-awards-1-7m-contract-liquidpiston-hybrid-electric-engine-development/ https://www.aviationtoday.com/2022/09/13/u-s-army-awards-1-7...