General motors… We should just be making cars department:
Dear Scotty,
In the last 20 years, I have seen GDI, computer controlled engines, and environmental controls put on American cars; result, where is the increased gas mileage we were promised? Thank you.
Sincerely,
Kevin
Fort Wayne, IN
<personal info removed>
It has certainly improved over old cars with carburetors. In more recent years manufacturers have had to concentrate on eking out minor improvements to meet government standards and tests rather than real-world improvements that provide value for consumers.
By the way, it is an exceedingly bad idea to post your email address in a public forum. No one from here will contact you that way, just spammers and scammers.
where is the increased gas mileage we were promised?
here
performance improves as well