I have two fiberglass buggies on the road. One since 2007 and the other I registered in 2013.
Both are registered as VW Beetle: Body style - dune buggy.
First one I registered the chassis before the body was on. Second one i bought as a project and had to go through ICBC search for the last registered owner. Got the paperwork and had it in my name as a VW Beetle: body style - dune buggy. Never had to get an inspection and never had any problems.