Currently, there are just two cars left in the U.S. that offer five-speed transmission. One is an automatic and one is a manual; neither are very long for this world, but we already know when one ...

Classic Chevy 5 Speed Transmission Insight ... Truth be told, outside of the top 1 percent of power-shifting studs out there, an automatic is the quickest way down the track.

To make it clear: Compared to an automatic 5-speed transmission which is still widely used today the consumption reduction amounts to approx. 14 %.

On the efficiency side is a continuously variable transmission , a variation of an automatic transmission, that has become widely available in recent decades. Originally popular on hybrid models, CVTs ...

In our tests, we've found that in some cars a manual transmission can improve gas mileage by a significant 2 to 5 mpg, compared with an automatic, and can cut a car's price by $800 to $1,200.