“I suppose you’re correct but I remember years ago my dad had a 1963 ford fairlane with the little 260 V8 that got 26 miles to the gallon . Out of the 5 modern vehicles I own only 1 beats that.”
Of course I’m correct.
Let me contrast your father’s '63 Fairlane V-8 with my 2011 Ouback (six cylinder):
Weight: Fairlane=3100 lbs Outback=3500 lbs
Displacement: Fairlane=260 c.i Outback=241 c.i.
Horsepower: Fairlane=164 Outback=256
Torque: Fairlane=258 Outback=247
0-60 acceleration: Fairlane=10.9 seconds Outback=7.1 seconds
Top Speed: Fairlane=103 Outback=110 (electronically governed)
MPG: Fairlane=14 mpg (estimated, overall) Outback=20 mpg, city/highway average
You may be correct about your father achieving 26 mpg with his Fairlane, but his figures were…not typical…and that figure is undoubtedly the maximum, rather than an average figure.
Over the past 5 years, I have been able to average 23.2 mpg, overall, and on a couple of occasions (on long trips) I have been able to eke-out 29 mpg with my Outback.
So, with a heavier vehicle with roughly similar displacement (but two fewer cylinders), I can accelerate much faster and consistently achieve better gas mileage (with the A/C running full-blast!), and at the same time be so much safer than somebody in a '60s vintage car that there is almost no comparison.
The science of electronics is the main reason why modern cars are so far superior to those of yesteryear, so…you may not like to encounter wires, but those wires are one of the prime reasons why a modern car is so much more efficient than a car from the '60s.