That is one of the reasons I just registered mine as a passenger vehicle from the get go. I didn't realize they were making this change, but it is mostly because of the 1980's mud runner trucks that people register as an antique to keep from having it fail the inspection process.

Every time I take mine for an inspection, they always ask me why it isn't registered as an antique. Then they just slap a sticker on it because they don't want to embarrass themselves by not knowing how to start it, whether it is legal not to have seat belts, etc!