BootFit is a rental car luggage fit checker. It tells travellers whether their suitcases and bags will physically fit inside a specific rental car's boot (trunk) before they arrive at the counter. The service covers 200+ vehicle models across 9 regions including the UK, Australia, Europe, and North America. It is used by solo travellers, families, and frequent business flyers. Core features include a luggage fit calculator, real boot photos, a 3D luggage visualiser, and downloadable boot loading guides. The free tier is available without registration. Paid plans (Travel Pass from $6.99 for 7 days, Premium from $15.99 for 30 days) unlock advanced tools including custom dimension matching and the 3D visualiser.