Thought this was interesting:
We were on our way to Atlanta on I-75 Tuesday and spotted what looked like an 04' Cadillac towing a tri-axle Airstream or Avion. It was in the opposite lane so I didn't have time to snap a pic, but the car seemed to be towing the trailer fine about 65-70mph. The only additions I noticed were aftermarket mirrors on the Caddy. I think all the newer caddys are front wheel drive.
1979 Airstream Sovereign International, 31'. VIN# I31T9J0162
1992 Buick Roadmaster Wagon, 5.7L - V8, stock 5000# tow rating, posi, aux trans cooler, rear coil over shocks, 2" rear spring lift kit, flowmaster exhaust.