Peter, you brought up a good point, one more reason I keep my 2005 wagon -- it's quite inexpensive for registration and insurance! I have four old motorcycles (70s, 80s), a tractor, a utility trailer, a boat trailer (boat registered in VT) and my Jetta. Yearly registration for all is only about $300; Jetta's the only thing insured. My wife, however, has a 2018 Subaru Crosstrek, and our RV (yeah, OK that was a big one) is in her name. Her yearly registrations (2 only) is over $1000 in NH.
And just think -- we don't have Big Brother tracking our every move in our old cars! (That may be the best part, IMO.)