Joining two vehicles together with double the weight and double the axle count does not change the load on each axle. So, scenario A: 4 ton vehicle, 2 axl

Joining two vehicles together with double the weight and double the axle count does not change the load on each axle. So, scenario A: 4 ton vehicle, 2 axles load per axle is 2 tonnes. 2^4 is 16 2 axles - so load is 32. Another vehicle the same - also loading 32 Total: 64 Scenario B: 8 ton vehicle, 4 axles load per axle is 2 tonnes 2^4 is 16 4 axles - load load is 64 Total: 64