Bump and run is a technique for passing used in
stock car racingStock car racing is a form of automobile racing found mainly in the United States, Canada, New Zealand, Great Britain and Brazil. Traditionally, races are run on oval tracks measuring approximately ¼ mile to 2.66 miles in length, but are also raced on road courses...
, but not in open wheel racing. The bump and run is quite similar to the Police
PIT maneuverThe PIT maneuver is a method by which one car pursuing another can force the pursued vehicle to abruptly turn sideways to the direction of travel, causing the driver to lose control and stop. The acronym "PIT" has a number of different meanings, depending on the agency using it or school teaching...
.
A trailing car intentionally bumps the car in front of it. The bump sometimes causes the lead car's rear
tireA tire is a ring-shaped covering that fits around a wheel to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground...
s to momentarily lose
tractionTraction may refer to:In engineering:*Forces:** Traction , adhesive friction or force in the context of vehicle propulsion** Traction vector, in mechanics, the force per unit area on a surface, including normal and shear components...
. The driver of the lead car is forced to correct their steering, slow down, or at least stop accelerating to regain traction and/or car attitude.
Discussion
Ask a question about 'Bump and run (auto racing)' Start a new discussion about 'Bump and run (auto racing)' Answer questions from other users |
Bump and run is a technique for passing used in
stock car racingStock car racing is a form of automobile racing found mainly in the United States, Canada, New Zealand, Great Britain and Brazil. Traditionally, races are run on oval tracks measuring approximately ¼ mile to 2.66 miles in length, but are also raced on road courses...
, but not in open wheel racing. The bump and run is quite similar to the Police
PIT maneuverThe PIT maneuver is a method by which one car pursuing another can force the pursued vehicle to abruptly turn sideways to the direction of travel, causing the driver to lose control and stop. The acronym "PIT" has a number of different meanings, depending on the agency using it or school teaching...
.
A trailing car intentionally bumps the car in front of it. The bump sometimes causes the lead car's rear
tireA tire is a ring-shaped covering that fits around a wheel to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground...
s to momentarily lose
tractionTraction may refer to:In engineering:*Forces:** Traction , adhesive friction or force in the context of vehicle propulsion** Traction vector, in mechanics, the force per unit area on a surface, including normal and shear components...
. The driver of the lead car is forced to correct their steering, slow down, or at least stop accelerating to regain traction and/or car attitude. The trailing driver positions their car to pass the leading car before the next corner. Bump and run is often done after coming off a corner. It is much more dangerous when done in the middle of a corner because both cars are already loose.
A gentle tap is what is required most of the time. A stronger bump might result in the lead and/or the trailing car spinning out of control, and possibly leading to a multi-car crash.
Car of Tomorrow
NASCARThe National Association for Stock Car Auto Racing is a family-owned and operated business venture that sanctions and governs multiple auto racing sports events. It was founded by Bill France Sr. in 1947-48. As of 2009, the CEO for the company is Brian France, grandson of the late Bill France Sr...
's newly redesigned car called the
Car of TomorrowThe Car of Tomorrow, sometimes called CoT or "Car of Today", is the car style for the NASCAR Sprint Cup Series. Larger and boxier than the design it replaced, the Car of Tomorrow is safer, costs less to maintain, and was intended to make for closer competition.The car was introduced in the 2007 Cup...
is expected to hinder the effects of bump and run. The rear bumpers on the cars were lowered, while the front bumper has been raised. When a trailing car hits a car in the back now, the contact is square, and the leading car isn't lifted off the track.