So for a little bit longer than a year I've been driving a Hybrid with a continuously variable transmission. It took some getting used to since the car never shifts, there is some planning into merging and passing since the power isn't there from the engine and the tranny takes a little bit of time to catch up. The CVT does have benefits though. The engine picks the 'ideal' revs for my throttle position and i rarely disagree with it. if I'm cruising on the highway it is as low as it can be, if i mash the pedal to the floor the revs go up to where the horse power is at it's peak and stays there until i am done accelerating. that last little bit is what swings me over to choosing a CVT over a MT and definitely over an AT. with no shifting the engine just pulls the car smoothly. imagine in bracket racing if your car never shifted, talk about cheating. the only reason i can see choosing a MT is because it makes driving more engaging. I like roaring around back roads and quick shifts. oh yeah a cvt weighs more than a MT too so that may be a reason to choose it too. but what's 100lbs in a 3000lbs car, you might as well kick you girlfriend out if you really need to save the weight that much. edit* this questions comes up with the CR-z 6 speed MT or CVT, which would you choose? what do you guys think?