House - Proto Type Drag Car
In the first 5 minutes of the episode, the girl is in the drag car racing. There is clearly a shifting sound and she shifts. Only problem is they say these are 4 second cars. I assume with running a 4 second car they should be top fuel cars. Top fuel cars do not have gears, it is a slipping clutch that gradually engages the gear through the run.
Whatever it Takes episode