To the OP: Some excellent comments of "gas coaches through the years".
But, please let us know if you are only interested in gas coaches or diesels as well/only.
The reason I bring it up is that that age diesel coach will have the "modern" inline 6 cylinder turbo, inter-cooled diesel and likely the Allison 6 speed transmission. A very good combination. Less complex than modern EPA-dictated engines and getting good power and MPG.
I agree, gasoline coaches have come a long way in the last 20 years. Diesel coaches, "not so much" as they were good performers even back then.
