[Rev]

In a car with not a whole lot of power, automatic does cost some accelleration in a drag race with everything else being equal. The transmission oil pump takes some power to function. I think in my 306, the C-4 uses up an extra 25 HP.

The advantage is that I almost always am able to launch the same way and that helps me get consistent et's. I never miss shifts even though I shift manually.

I do think with a 4 speed and a good driver, my car would be some faster due to the fore mentioned reasons, but it would be a little more difficult to drive well.

Rev