GM May Cancel $1.6b Brazil Investment on Crisis, O Estado Says

GM concerned Brazil may not have solution to current economic crisis in next three years, O Estado de S.Paulo reported, citing an interview with President Dan Ammann. * Automaker wants to see signals of political, economic advances in nation in next 6-12 months, which would allow GM to keep planned investment, Ammann is quoted as telling the newspaper * NOTE: GM announced BRL6.5b ($1.6b) investment through 2019 in