A quick google would suggest a Krone Trailer can weigh around 6,000 kg for a flat bed, 6,700 kg for a curtainsider and 7,600 kg for a refrigerated trailer, the Tesla Tractor unit weighs 9072 kg for the 300 mile range version and the 500 mile range is 10,433 kg, so long range with curtainsider is 17,133 kg before you put anything in it, leaves a load of 26,867 kg also bear in mind any HGV basically needs to be running constantly to earn it’s keep, these will take far longer to turn a profit than current HGV’s,I’ve said it before, these will be no good for tramping or Continental work, until a full network of chargers are in place