MundoColectivo is an online reference dedicated to documenting public transport vehicles, fleets, and their history. Described as a major database of transport operators and their records, the site brings together information on national, provincial, interprovincial, urban, long-distance, and international fleets. Its coverage includes Argentina’s CABA and provinces, cities such as Rosario, Córdoba, Mendoza, Tucumán, and Salta, as well as Uruguay and historical fleets.

Visitors can browse fleet listings, vehicle statistics, updates, interviews, and a searchable collection of bus plans. The database features more than 157,000 recorded units and over 3,200 plans, with statistics organized by region and service category. Figures include fleet sizes, the number of vehicles with or without air conditioning, and average vehicle age. The plans section covers numerous manufacturers and body builders, including Marcopolo, Metalpar, Saldivia, Busscar, and Todo Bus. MundoColectivo also publishes updates to its fleet records and provides general and regional statistics, making it a resource for people interested in buses, operators, and the development of public transport fleets.