Next Generation Combat Vehicles: As Army Prioritizes Rapid Development, More Attention Needed to Provide Insight on Cost Estimates and Systems Engineering Risks, Report to Congressional Requesters [open pdf - 2MB]
From the Highlights: "The Army views the NGCV [Next Generation Combat Vehicles] portfolio as one of its most critical and urgent modernization priorities, as many current Army ground combat vehicles were developed in the 1980s or earlier. Past efforts to replace some of these systems failed at a cost of roughly $23 billion. In November 2017, the Army began new efforts to modernize this portfolio. GAO [Government Accountability Office] was asked to review the Army's plans for modernizing its fleet of ground combat vehicles. This report examines (1) the acquisition approaches and contracting strategies the Army is considering for the NGCV portfolio, (2) the extent to which the Army's efforts to balance schedule, cost, and technology are reducing acquisition risks for that portfolio, and (3) how the Army is communicating internally and externally to reduce acquisition risks."
Government Accountability Office: https://www.gao.gov/