The 2016 through 2019 Kia Soul front wheel drive manual transmission models are all listed as 4 down towable in the FMCA towing guides. Have the salesman check with the parts department and see if the part numbers for a complete transmission are the same for a 2019 and 2020 Soul. If they are, then the 2020 should be 4 down towable. Sometimes the manufacturer will no longer recommend a vehicle for recreational towing for other than mechanical reasons. Towed miles do not appear on the odometer, but they still cause wear on parts of the driveline. Things like wheel and axle bearings and steering components still are being used while towing even though the miles don't show up. If I tow 10,000 miles per year, the 3/36,000 warrantee on those components just turned into 3/66,000 since the 30,000 towed miles are "invisible" to the dealer.