MIRO – Mass in Running Order
Unladen weight, as-built weight, base weight, running weight
MIRO is the weight of a motorhome as built and ready to drive: standard equipment, full fuel tank, and 75 kg for the driver, but without passengers or personal belongings.
MIRO is the baseline for calculating payload. Payload = MTPLM − MIRO. Options and accessories added by the dealer increase MIRO and reduce available payload. Always check the actual MIRO on the vehicle's VIN plate.