A4 Drivers-Do you use one foot or two?
Melting Slicks
Joined: Jun 2004
Posts: 2,453
Likes: 81
From: Fishin' Pole FL
One of you left-footers should go over to "Wikipedia" and "edit" this out.
Left-foot braking
Road use
This practice is not recommended while driving on public roads. [4][5][6]
Instead, drivers are advised to use the right foot for both acceleration and braking. The primary reason for this is that there is never any situation in a car with an automatic transmission where it is safe or necessary to apply both brake and throttle at the same time. Using one foot for both ensures that the driver can only operate one pedal.
Additionally, in emergency braking situations, it is common for the driver to extend both legs in a panic reaction. If the right foot is on the throttle, this will cause unwanted and potentially dangerous acceleration.
Most manufacturers of cars with automatic transmissions provide the car with a rest for the driver's left foot so the right foot may be used exclusively for throttle and braking.
Also, when the left foot is often used for depressing the clutch pedal this generally requires more force than operating the brake. A driver accustomed to applying this amount of force may unexpectedly slow down to an unsafe speed when attempting to use the left-foot braking technique.
Using the left foot for braking can also cause confusion when switching to or from a vehicle with a manual transmission because of the differing roles of the left foot. [7]
In addition, many modern vehicles use a "Drive By Wire" or Electronic throttle control system instead of the traditional mechanical throttle linkage. These systems have a safety interlock that prevents left foot braking. The car's ECU can detect when both pedals are pressed simultaneously and will immediately cut the engine power for safety reasons.
Left-foot braking
Road use
This practice is not recommended while driving on public roads. [4][5][6]
Instead, drivers are advised to use the right foot for both acceleration and braking. The primary reason for this is that there is never any situation in a car with an automatic transmission where it is safe or necessary to apply both brake and throttle at the same time. Using one foot for both ensures that the driver can only operate one pedal.
Additionally, in emergency braking situations, it is common for the driver to extend both legs in a panic reaction. If the right foot is on the throttle, this will cause unwanted and potentially dangerous acceleration.
Most manufacturers of cars with automatic transmissions provide the car with a rest for the driver's left foot so the right foot may be used exclusively for throttle and braking.
Also, when the left foot is often used for depressing the clutch pedal this generally requires more force than operating the brake. A driver accustomed to applying this amount of force may unexpectedly slow down to an unsafe speed when attempting to use the left-foot braking technique.
Using the left foot for braking can also cause confusion when switching to or from a vehicle with a manual transmission because of the differing roles of the left foot. [7]
In addition, many modern vehicles use a "Drive By Wire" or Electronic throttle control system instead of the traditional mechanical throttle linkage. These systems have a safety interlock that prevents left foot braking. The car's ECU can detect when both pedals are pressed simultaneously and will immediately cut the engine power for safety reasons.
Race Director
Joined: Nov 2003
Posts: 14,372
Likes: 2
From: Indianapolis IN
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17
Usually one foot. I use two when there is a possible contest at the light's change, although that is a rare occurrence. 
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From: Right Corner Pocket of Illinois
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St. Jude Donor '12 thru '26
I dont have an A4 but I own a few automatic transmission vehicles and ALWAYS use the right foot for acceleration and the left foot for braking.
Team Owner
Joined: Mar 2007
Posts: 35,090
Likes: 2,086
From: Right Corner Pocket of Illinois
No-IL Events Coordinator
2026 Corvette of the Year Finalist - Unmodified
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St. Jude Donor '12 thru '26
I hold my left foot over the brake pedal in anticipation of it's use, never resting on it. In panic mode I instinctively use both feet on the brake pedal...
Instructor
Joined: Aug 2006
Posts: 209
Likes: 0
From: Hana Hawaii
Burning Brakes
Joined: Apr 2006
Posts: 940
Likes: 0
From: Surprise Arizona
One of you left-footers should go over to "Wikipedia" and "edit" this out.
Left-foot braking
Road use
This practice is not recommended while driving on public roads. [4][5][6]
Instead, drivers are advised to use the right foot for both acceleration and braking. The primary reason for this is that there is never any situation in a car with an automatic transmission where it is safe or necessary to apply both brake and throttle at the same time. Using one foot for both ensures that the driver can only operate one pedal.
Additionally, in emergency braking situations, it is common for the driver to extend both legs in a panic reaction. If the right foot is on the throttle, this will cause unwanted and potentially dangerous acceleration.
Most manufacturers of cars with automatic transmissions provide the car with a rest for the driver's left foot so the right foot may be used exclusively for throttle and braking.
Also, when the left foot is often used for depressing the clutch pedal this generally requires more force than operating the brake. A driver accustomed to applying this amount of force may unexpectedly slow down to an unsafe speed when attempting to use the left-foot braking technique.
Using the left foot for braking can also cause confusion when switching to or from a vehicle with a manual transmission because of the differing roles of the left foot. [7]
In addition, many modern vehicles use a "Drive By Wire" or Electronic throttle control system instead of the traditional mechanical throttle linkage. These systems have a safety interlock that prevents left foot braking. The car's ECU can detect when both pedals are pressed simultaneously and will immediately cut the engine power for safety reasons.
Left-foot braking
Road use
This practice is not recommended while driving on public roads. [4][5][6]
Instead, drivers are advised to use the right foot for both acceleration and braking. The primary reason for this is that there is never any situation in a car with an automatic transmission where it is safe or necessary to apply both brake and throttle at the same time. Using one foot for both ensures that the driver can only operate one pedal.
Additionally, in emergency braking situations, it is common for the driver to extend both legs in a panic reaction. If the right foot is on the throttle, this will cause unwanted and potentially dangerous acceleration.
Most manufacturers of cars with automatic transmissions provide the car with a rest for the driver's left foot so the right foot may be used exclusively for throttle and braking.
Also, when the left foot is often used for depressing the clutch pedal this generally requires more force than operating the brake. A driver accustomed to applying this amount of force may unexpectedly slow down to an unsafe speed when attempting to use the left-foot braking technique.
Using the left foot for braking can also cause confusion when switching to or from a vehicle with a manual transmission because of the differing roles of the left foot. [7]
In addition, many modern vehicles use a "Drive By Wire" or Electronic throttle control system instead of the traditional mechanical throttle linkage. These systems have a safety interlock that prevents left foot braking. The car's ECU can detect when both pedals are pressed simultaneously and will immediately cut the engine power for safety reasons.
Melting Slicks
Joined: Sep 2005
Posts: 2,439
Likes: 3
From: MN
St. Jude Donor '06
When I had my A4 C5, I always used two feet (aka left foot braking).. this was born under performance driving conditions and ended up staying with me during normal pace street driving.
I drive my X5 the same way.
I guess my left foot doesn't want to be left out.
I drive my X5 the same way.
I guess my left foot doesn't want to be left out.