I owned a mid-'70s Datsun 510 for six years and drove it all over the country. It had a 1600cc OHC engine (mine was modified with a header and free flow exhaust.. specifially to get better mileage) and I challenge anyone's claim of regularly getting 50mpg with that type of car... unless there were special circumstances I don't know about. A real world 35mpg, perhaps. Sunruh, I'm not calling you a liar but maybe your math was off, you inconsistently filled the tank to different levels, changed the tires size or your speedo was off. All of these could lead to "optimistic" MPG. You can only get so much work out of a gallon of fuel and those older carbureted engines weren't nearly as good as the modern ones of doing that.
BTW, I agree with the general consensus on hybrids. They are a feel-food marketing tool that essentially keeps us off the real issues. I think it may tend to dilute or slow down the research on better solutions because some of the public pressure will ease. Since they "did something" and the uninformed jumped on that "blue-sky" bandwagon (including government), the tendency is to reap the profits and not spend as much for R&D on new stuff..
BTW, I agree with the general consensus on hybrids. They are a feel-food marketing tool that essentially keeps us off the real issues. I think it may tend to dilute or slow down the research on better solutions because some of the public pressure will ease. Since they "did something" and the uninformed jumped on that "blue-sky" bandwagon (including government), the tendency is to reap the profits and not spend as much for R&D on new stuff..