Alain Marty, 69, from Villeneuve-sur-Lot, has lived in his Fiat Ducatoⓘ motorhome for 19 years. With a pension of about 2,000 euros per month, he estimates that without rent one could live on 1,000 euros. He also keeps a 3,000-euro reserve for major breakdowns. This is a personal estimate, not a universal budget: fuel, insurance, maintenance and parking costs vary.