A few years back GMP made some 1:18 Scale Trailers exclusively for Buicks. These have been sold out for a long time but we found a source that still had some left (Brand New in un-opened cases) Retail was $49.95, our price is $39.95. Also included are the trailer ramps, tire rack and 4 GN Rims with Slicks mounted on them. Here are some pics: For more pictures of these and the other Diecast Models we sell just visit our website at www.DiecastMusclecars.Com (Then click on the Buick Page for Buick Stuff)
I have two of those trailers and converting one into a goose neck with custom cowling like my full size trailer .