Ultra effecient combustion cars, under 1.5 litre, thoughts, pics, comments, designs, concepts Options

[pete-stevers]

Given todays economic climate, possible scaricity of fuel, and of course just the raw challenge of building a car with high mpg,
we should have a thread on cars of this nature, in production,prototypes,homebuilts, concepts and pictures.
( I wish i had the time and energy to build a car with a sub 1 litre engine, and maybe one day i will)

but lets keep it to combustion power, for now

[Brett W]

There is nothing wrong with turning some rpm. My Civic would get better mileage with a high rpm than it did with a lower one. I changed transmissions around a couple of times and found better mileage with more rpm. Remember the more the throttle is closed the higher the pumping losses. The engine has to work harder. Hence part of the reason diesels work better in many cases.