Miles/gallon: Newer vs Older Cars

One thing I haven't seen in this thread is how much more aerodynamic newer cars are. A good part of newer cars have a drag coefficient around .3 and some as low as .25, our older cars would be lucky to be under .5 cd.
That being said my old 85 Plymouth Horizon 2.2 5 speed got 41 mpg highway and around 30 in town which is a hair better than my 98 Neon dohc 5 speed.