Programmer + simple math + transmission geekery = this comparison of the manual and automatic transaxles used in my car.
Getrag F23 stats [ed. - manual transaxle]
MPH per 1000 RPM:
1st (3.580:1): 5.387
2nd (2.020:1): 9.547
3rd (1.350:1): 14.285
4th (0.980:1): 19.678
5th (0.690:1): 27.949
Final drive ratio: 3.840
Daewoo 4T40E stats [ed. - automatic transaxle]
MPH per 1000 RPM:
1st (2.960:1): 6.398
2nd (1.626:1): 11.648
3rd (1.000:1): 18.939
4th (0.681:1): 27.811
Final drive ratio: 3.910
This will work for any geared transmission as long as you know the gear ratios, final drive ratio, and the wheel size. Any requests? :V
On a related note, if my car's automatic transaxle eventually dies, everything else is still good, and I have the money, I'm gonna swap it out for a manual transaxle. Been looking into it for a while (morbid curiosity) and it's actually not too terrible: drop the engine block, remove the transaxle and torque converter, apply flywheel and clutch housing, install clutch pedal and hydraulic control, apply transaxle, weld two mounting brackets into place, replace engine block. Get the ECU reflashed or pick one up from a junked manual car in the meantime.
My car's still running strong, but I hate my transaxle more than everything else about it combined and would love to replace it when it dies rather than getting a new car. Parts and tools look to be close to $1000, which is barely enough to buy a clunker running on borrowed time.