Once upon a time, I had a 1972 Olds Toronado that I still remember as the most comfortable car I ever had. I think it got about 8 mpg. The 1983 Honda Goldwing was the most comfortable motorcycle I have ever owned.
at age 16 until 1983 , a 1955 buick roadmaster 70 series 4 door post. Floated over the road with such weight bumps and potholes were hardly noticed. only got 4.5 mpg in the city. Impressive 25 to 27 mpg on the interstate. Had a dynaflow transmission with variable overdrive.