It has slightly taller 1 and 2, 3rd is direct (1:1 like mehran manual 4th gear)
The torque converter slightly helps in the 1 and 2 but its a weak engine and a tiny converter.
Dont expect miracles
Mehrans original autogear was 2 spd semiauto like the ones found in G11 charades.
You start driving in L range and shift to D at 60 kmh