Deadfoot Leadfoot

Action Movie Trope where the driver of a vehicle is shot/killed. Instantly, he suffers a muscle spasm that extends the driver's leg, pushing the accelerator pedal all the way to the floor. Then instant rigor mortis sets in, keeping it there. Naturally, this causes the vehicle to accelerate to ludicrous speed, putting anyone in the way of this driving dead man at mortal risk.

Related to Runaway Train.

As a Death Trope, Spoilers ahead may be unmarked. Beware.

Examples of Deadfoot Leadfoot include:

Film

The truck driver in Raiders of the Lost Ark.
- Justified examples: The pilot in Raiders of the Lost Ark and the tank driver in Indiana Jones and the Last Crusade. These are a little different, since in both cases they involve a hand-operated throttle and the driver falling on top of it.
The Subway in Superman IV: The Quest for Peace. The fact that there is no preventive measure for such a thing here makes Big Blue's speech about public transportation being the safest way to travel, slightly comical.
The subway train in the film Speed. The opposite effect of a real deadman's switch, which would stop the train.
- Inverted when the original bus driver gets shot. Not only doesn't he die, but they have to get a new driver in the seat and keep her from going below 50 (and Keanu hasn't told 'em there's a bomb on the bus yet).
Coke, the El Train driver in The French Connection.
- Justified in the same way as Indiana Jones, since it's hand operated.
Variant occurs in the movie Agent for H.A.R.M. (featured on Mystery Science Theater 3000) where Agent Chance shoots the driver, the car continues to drive... Into the ocean. A henchmen jumps into the passenger seat but doesn't make any attempt to drive, the dead guy just keeps it going.
Live and Let Die. James Bond's driver gets shot with a dart that causes exactly this reaction. Of course, it presumably was a kind of poison with specific plot-related symptoms.
- Something similar happens with the Big Bad and a boat in Thunderball.
Happens to the limo driver during the Florida Keys action sequence in True Lies.
District 9. Wikus, in full Powered Armour, manages a headshot on the mercenary driver of a car charging towards him. Somehow, having his head liberally splattered all over the car's interior doesn't stop the Mercenary from putting all of his remaining weight on the pedal, resulting in Wikus getting knocked over by the speeding car.
In the Hey Arnold! movie, this happens to the bus driver near the end.
In Warlords of the 21st Century, a.k.a. Battletruck, the Big Bad kills his driver in a fit of anger, and attempts to take the wheel himself, only to be incapacitated by the main protagonist. The Battletruck ultimately meets its obvious end.
In Forklift Driver Klaus Klaus ends up decapitated by chainsaw, with his forklift still going, and ends up impaling another man, ending with his corpse driving off into the sunset with two impaled screaming workers.
Played with in Lethal Weapon. McAllister and his driver escape in a car through an alley, only for the driver to be shot dead by Murtagh. McAllister desperately attempts to take the wheel, but is thwarted when the car is hit by a bus and ultimately destroyed by a live grenade in the back seat.
New Police Story had a driver that, when killed, not only slammed on the gas but certainly swerved to maximize damage and drama.
It's not detailed whether he died or not, but in Salt Evelyn repeatedly tasers a driver to achieve this same effect.
Happens near the beginning of the film version of The Fugitive.

Literature

In Ian Fleming's James Bond short story 'Risico' (used fairly faithfully for the bulk of the movie For Your Eyes Only), Bond shoots Kristatos as he's making his getaway after his operation is detroyed...with the Lancia's wheels in the road ruts guiding it and his dead foot on the gas pedal, the car hurtles out of sight into the distance.

Live-Action TV

The driver of a car is disabled by an object falling off of a truck in this episode of Rescue 911 and his car continues driving.
A space example of this happens to Racetrack in the 2004 Battlestar Galactica.
House frequently approaches this trope, although the characters usually have become unconscious or lost muscle control. In season 2, for example, two consecutive episodes ("Need to Know" and "Distractions") started with the main patient driving a vehicle and dramatically hitting the accelerator at a key moment from their illnesses.
Psych pulls this once with the victim being gassed to death. Luckily, the car is on a dynamometer and is literally going nowhere fast.
The first episode of Flash Forward did this on the largest scale yet. When the blackout occurs, every driver on the planet falls victim. (Granted, they only fall unconscious for a couple of minutes, but some do not survive the resulting crashes.)
- In this case, it's entirely possible that the crashes all happened within moments of the people passing out. Even if their foot stopped pressing down on the pedal immediately, momentum would have easily done the job. In a situation like that, the only drivers with their cars in gear that wouldn't have an crash of some sort would likely be the ones gridlocked in traffic (though they'd probably mostly have minor taps and fender benders, there wouldn't be anything major).
Sorta happens in 1000 Ways to Die. In case #412 ("Re-Tried"), an old man died behind the wheel of his Classive Chevy, during his daily ritual of sitting in the driver's seat and reminiscing about his life. The car went on driverless and hit a bank robber, killing him.

Tabletop Games

The Orks have a table you roll on when a Trukk is destroyed with results ranging from "keeps going for a ways before toppling over" to "zooms off a ways and explodes".^[context?]

Video Games

Happens in Grand Theft Auto IV if the driver of a car is killed.
- Though subverted in San Andreas, where killing a driver will cause the car to immediately brake to a screechy stop before ejecting the corpse.
  - Still a lateral move as far as realism is concerned.
Happens in JFK: Reloaded if you kill the limo driver. Sometimes he manages to turn the steering wheel a little bit too, most often resulting in the presidential limo crashing into the side of a building, killing everyone else in the vehicle and tossing their bodies out onto the sidewalk and street.
Call of Duty: Modern Warfare 2 has your character briefly steering a car from the passenger seat because the driver was shot and apparently ragdolled onto the accelerator.
How Detective Rindge dies in Ghost Trick. The high-pitched squeal of the ladybug's destruction knocks him unconscious and his van plows through a plate-glass window into a restaurant. Don't worry, you fix it.
Used in Metal Slug 2 and X (its remake) during the train level where some enemies in motorboats fire missiles at you. Even if you kill the driver, they just slump over on the controls and the attack persists. It isn't until you destroy the boat you get em off your back.
In Company of Heroes, this is what happens to all "killed" vehicles that don't blow up outright, instead going "Out of Control" and aimlessly barging forwards before exploding on contact with the first obstacle. This can lead to an amusing sight of reversing vehicles instantly jerking into forward motion at full speed without as much as a slowdown, as if they bounced off something invisible.
- Amusingly this has also led some people to complain about this being a balance issue due to said vehicles potentially plowing into and killing infantry in this manner.

Web Comic

Invoked in Jack, where a woman trapped in her car with a serial killer speeds up, daring her captor to shoot her and chance a crash

Western Animation

Samurai Jack Episode 7: Jack and the Three Blind Archers. The archers take out a tank with a robot driver, who collapses onto the control causing the tank to rampage and shoot at the other robots.

Real Life

A tragic real-life example occurred at the 1977 South African Grand Prix where driver Tom Pryce was killed instantly in a collision with a track marshal and his car continued on driverless for a whole straight before crashing.
- And a version in the 2009 Hungarian Grand Prix, with Felipe Massa. He didn't die, but he kept going after the spring had hit him and left him unconscious. Of course since he had been going quite fast before the accident...
The Waterfall rail accident near Sydney, Australia in 2003. The driver suffered a heart attack, and was heavy enough that his foot kept the deadman switch on the floor depressed.
- Note that trains these days usually have a dead man's switch that has to be toggled periodically. Falling unconscious on one doesn't work.