Many Skylines were subsequently imported through Motorex. This lasted until late 2005, when the NHTSA became informed that not all 1990 through 1999 Skyline models would perform identically in crash testing. Motorex had submitted information for only the R33, and told the NHTSA that it was sufficient for all R32, R33, and R34 models. According the further review by the NHTSA, only 1996-1998 R33 models have been demonstrated as capable of being modified to meet the federal motor vehicle safety standards. As of this writing, only these 1996-1998 models are eligible for importation