I think you may have an opportunity to attract visionary, environmental architects and urban-planners who might very well be interested in building a condensed model car-free city. The fact that it is on land formerly used to build cars is the kind of irony most would find irrisistible. Perhaps this model-city could be a showcase for innovative environmental technologies, but be functional as well with homes, shops, restaurants and offices operating on alternative heat/lighting/cooling systems, rooftop gardens, pedestrian/cycling-only access (except for deliveries that would enter and use a separate roadway), etc. City Council in Flint should be embracing an idea like this and actively pursue urban planners, architects that are looking for large parcels of urban land to test and display theories and technologies. It might very well revitaize the city.