American customers who purchased various Volkswagen TDI diesel vehicles took advantage of about $ 50 m in Federal income - tax credits in 2009 , for their ( supposedly ) green car , and ﻿now The Justice Department, 45 state attorneys general, German prosecutors and environmental regulators around the world are investigating. it seems those credits will be subject to a ﻿Congressional investigation . With Michael Horn , president of VW Cars of America , speaking to Congress this morning , those credits , and whether the Federal government should be reimbursed for them , and by whom , will be receiving a lot of attention . As noted by The Detroit News , the Finance Committee of the US Senate panel said on Tuesday it would launch an investigation into VW 's use of the credits , which expired at the end of 2009 .
American customers who purchased various Volkswagen TDI diesel vehicles took advantage of about $ 50 m in Federal income - tax credits in 2009 , for their ( supposedly ) green car , and ﻿now it seems those credits will be subject to a ﻿Congressional investigation . With Michael Horn , president of VW Cars of America , speaking to Congress this morning , those credits , and whether the Federal government should be reimbursed for them , and by whom , will be receiving a lot of attention . As noted by The Detroit News , the Finance Committee of the US Senate panel said on Tuesday it would launch an investigation into VW 's use of the credits , which expired at the end of 2009 .