[msisk6]

Drag racers. The current trend is very high-horsepower turbo-charged engines with lots of torque and a two-speed "auto" is all they need and there's only one shift in a 1/4 mile run.

I put "auto" in quotes because the automatic function is usually removed and you have to shift it manually.

[userbinator]

The torque converter effectively provides an additional extra-low gear right at the launch which is very helpful for acceleration, and there's also no interruption in power during the shifts.