In 1985 I was driving down to Sedona Arizona in my 1969 (low-mile) Buick Skylark. I burned up the engine near Ludlow California (thermostat not opening all the way). Soon after I drove down and towed it back with the Eldorado. I completely rebuilt the Skylark 350, the Eldorados were not really suited for towing (as to the frame) but the car did well on this long trip. The 472 was effortless of the Sierra grades and in the deserts of California (Kodachrome 25 Transparency to Digital)