By Jeffery L Carey Jr A new Lear Flint Seating Plant, the first major automotive supplier manufacturing facility constructed in Flint in more than 30 years, opened Saturday, Aug. 11 on a formerly overgrown Buick City brownfield. The project was funded with a $29.3 million capital investment by Lear and a $4.35-million Michigan Business Development Program grant. Lear, a global corporation doing business in 39 countries, does subassembly and final assembly of automotive seats.  The Flint facility has 156,000 square feet, with 30 percent of the more than 33-acre site set aside for green space. It opened...