Filename: 1974-2009 Vehicle Year & Model Interchange List (Sisters & Clones List) Domestic & Import Makes
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YEAR/MODEL INTERCHANGE LIST (Clones & Sisters)
This list began in 1990 with a stated need in the Accident Reconstruction
community for a centralized source of equivalent vehicles for referring to NHTSA
crash tests, since NHTSA does not retest vehicles every year if they have not
changed significantly, and generally will only test one sample vehicle of a
family of vehicles that may be sold under different brand names but are
essentially the same vehicle structurally. As such the focus of the list is
primarily frontal collisions (for deriving stiffness coefficients, etc.). There
are occasions when, for example, significant interior changes are made in the
middle of a model's run which may be relevant to occupant protection but will
not be picked up in the list if there are not significant structural changes
(i.e. changes in "hard points", wheelbase, etc.) at the same time.
Often the degree of change is arguable. (If you were to believe some of the
manufacturers, their cars are "all new" every year!). Whether to start a new
"base" year is sometimes a judgment call and you may disagree. When there are
changes like these the remarks column will generally say "Restyle" in some form
or another. The start and end year may or may not have a break at this point,
depending on the perceived degree of structural change. Either way, the
terminology is there to alert you to this. If you have some insight into a
specific area, call or e-mail me with your input.
Regarding trucks and SUVs, remember that the focus of the list is frontal
crashes. Therefore comments will sometimes reflect an equivalent vehicle with
(Front), (Fr), etc. This is because, for example, many of the truck-based SUVs
have essentially the same structure from the cowl forward as the pickup trucks
from which they were derived, but are greatly different to the rear. Therefore,
if you are dealing with (for example) side impacts, rear impacts, yaw inertia,
etc. the vehicles will generally NOT be equivalent.
Please also allow me the standard disclaimer that I do not in any way guarantee
the accuracy of these lists. Some similarities represent my own estimates, and
some of the older years are from memory. Most are pulled from specifications
tables, which may contain inaccuracies all their own. Use common sense-if
something seems wrong, check it (and tell me). If you have suggestions,
corrections, etc. contact Greg Anderson, (608)256-8020, Fax 256-0212, e-mail
greganderson522@cs.com
The list is produced annually for the meeting of the Accident Investigation and
Reconstruction Practices Committee (a Standards committee of SAE) at the SAE
Congress in Detroit, and is generally available from several sources after that.
As of 2009 all cars, trucks, vans, and SUV's (4-door SUV's are also called
Station Wagons) are incorporated into a single list, including both Import Makes
and Domestic Makes. Also, Domestic-make cars prior to 1980 are included from
1974 to 1980 (just ignore the heading prior to 1980).
This CD includes the list in Adobe Acrobat (.pdf) format as well as the entire
database in its native format, Microsoft Access 2007(.accdb)
Gregory C. Anderson, P.E.
Scalia Safety Engineering
521 E. Washington Ave., Suite 200
Madison, WI 53703
(608)256-8020
greganderson522@cs.com
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