They could support tracks on existing vehicles by making new hubs/shafts. You remove the hub, add a shaft extension, replace the hub, then get spare rims and tr

They could support tracks on existing vehicles by making new hubs/shafts. You remove the hub, add a shaft extension, replace the hub, then get spare rims and tracks out of the boot and do an Indy 500-style fast wheel change. If you hustled my bet is you could do this in 2 minutes with four people. Would add significant unsprung weight but would support existing vehicles. If you modify the vehicle you can support this without changing the hub and shaft/extension, just change the wheels and add tracks. But I'm assuming they wanted to work with a mostly stock vehicle.