Many Skylines were subsequently imported through Motorex. This lasted until late 2005, when NHTSA learned not all 1990 through 1999 Skyline models would perform identically in crash testing. Motorex had submitted information for only the R33, but had asserted that the data applied to R32, R33, and R34 models. NHTSA determined that only 1996–1998 R33 models have been demonstrated as capable of being modified to meet the federal motor vehicle safety standards, and that only those models are eligible for import. In March 2006, Motorex ceased all imports and Motorex principal Hiroaki "Hiro" Nanahoshi was arrested and held on $1 million bail on financial, kidnapping, and assault charges. Nissan developed the 2007 Nissan GT-R to meet this market demand in the United States.