Regarding abnormally low speed, what is the minimum speed at which, unless there is a justified reason, a motorhome with a maximum authorized mass (MMA) of 3,000 kg must travel on a conventional road (carretera convencional)?

Correct answer: 45 km/h.

A 3,000 kg motorhome has the same speed limits as a passenger car: 90 km/h on a conventional road (carretera convencional). Its minimum is half that, 45 km/h, unless there is a justified reason. The 40 minimum would apply to a motorhome over 3,500 kg.

Real Decreto 1428/2003, de 21 de noviembre, por el que se aprueba el Reglamento General de Circulación · Real Decreto 1428/2003, de 21 de noviembre, por el que se aprueba el Reglamento General de Circulación