It's not weight because then Smokey Yunick's hot adiabatic engine would never have achieved 50 mpg.

You've probably never heard of the Alé which gets 92 mpg and yes today's engines burn 97% of the fuel, except most of that is burned during the exhaust stroke which you can clearly see on any engine that has had the exhaust manifolds removed and blue flames are exiting the exhaust ports of the cylinder heads.

Would it not be cheaper to just buy the truck with a diesel engine for better fuel economy?

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You were saying...

And who can forget this!

Really? No one thought to include this car in their list.

So you believe that you need a license to drive in California? Well I have a bridge in San Francisco to sell you.

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