In Wisconsin, you can register your cobra under the Hobbyist License Plate Application. And, there are 4 categories, Street Modified, Reconstructed Vehicle, Replica Vehicle or Homemade Vehicle. The plates cannot be customized and will state Hobbyist with an assigned number. The Replica category can be used for vehicles at least 20 years old and appears not to be subject either physical nor emissions inspection. Is anyone familiar with Wisconsin's application and/ or does this sound familiar to other state application choices?