Spain's motorhome fleet has grown 185% in a decade, exceeding 137,000 registered units. ITV frequency depends on maximum authorized mass (MAM) and age: for motorhomes up to 3,500 kg, first inspection at 6 years, then every 2 years until 10 years, then annually; for heavy ones (over 3,500 kg), at 2 years, then every 2 years until 6 years, then annually. Cost ranges from €45 to €75 for light models and up to €100 for heavy ones, varying by autonomous community. Main failure reasons are illegal modifications (bike racks, solar panels, skylights) and gas installation issues.
