Recently an invention competition was held in Argentina called Innovar. One of the entries was a sustainable car project called the Nexo project and was created by 26-year-old industrial designers Ernesto Frias and Nicolás Alem. The basic platform is adaptable to a variety of different uses by changing body panels and other parts. The tubular steel space frame is made up of common parts that can be put together in multiple combinations, to create different sized vehicles as needed. The body panels are largely flat, for easy manufacturing. The designers showed renderings of configurations including a 2.1m long three seat commuter, a longer four seater and an ambulance. The default version uses an engine that runs on natural gas, but it can also be powered by an electric motor. This could definitely be decent alternative in emerging markets. There are more photos after the jump.