I prefer going back to the 60s and 70s, but when you do that fule efficiency drops my a huge amount, to have something affordable to drive regularly you'll need a 4 cylinder from that time period.

Of course I only really use a vehicle for hauling things, so it has to be a V8, but on the bright side the big trucks that could haul massive loads from back then are actually smaller than the "Never leave the pavement, and if you carry more than groceries your warranty is void" trucks they sell now.

I was far below the average gas use when I had that big F-550 than the American average because I used it for what it was needed for, or to drive down the highway and park so I could pull out my bike and ride from there once I was past the "Oh god, oh god, we're all gonna die!" stretch of road.