As a request by someone to make it easier to find this list on a front page, I couldn't think of anyway to do it except create a new thread. Below is a list of links to Custom Vehicle Icons for your GPS compatible unit. Please link to the original thread for any discussions and how to's:
http://www.poi-factory.com/node/9738

A jpg file of most of the vehicles is listed here:

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This sight is updated regulary with hundreds of vehicles to choose from. Thanks for the great work, It's a great webpage.
www.vehiclesforgarminnuvi.com

Thanks to aarrgghh for creating some great custom vehicles!

Star Wars Landspeeders
http://glad-you-asked.blogspot.com/2008/09/all-thats-missing.

Tron light cycles
http://glad-you-asked.blogspot.com/2008/06/all-thats-missing.

Darth Vaders Tie Fighter
http://glad-you-asked.blogspot.com/2008/04/force-missing-all.

Star Trek Shuttles
http://glad-you-asked.blogspot.com/2008/04/all-thats-missing.

Batmobiles (40's,50's Tumbler)
and Mach 5 (Speed Racer)
http://glad-you-asked.blogspot.com/2008/02/aarrgghhz-carz.ht.

TV Batmoblie
http://glad-you-asked.blogspot.com/2008/02/all-thats-missing.

Beatles Yellow Submarine
http://glad-you-asked.blogspot.com/2008/02/all-thats-missing.

And to all the others, there are so many!

Thanks to raptrflite for creating these:
Shelby Cobra, Airwolf, Corvette, Millenium Falcon, Mustang, Snowspeeder
http://sites.google.com/site/raptorbase/

Ford Model T, Corvettes, Porsche's, Planes, Star Wars, Star Trek.
www.vehiclesforgarminnuvi.com

Mini Coopers
http://homepage.mac.com/WebObjects/FileSharing.woa/wa/defaul.

BMW Z3 and Z4
http://www.ecarter.net/midwest/nuvi.htm

Smart car and Lexus suv
http://techmods.net/nuvi/vehicles/

Garmin Garage
http://www8.garmin.com/vehicles/bundles/allvehicles.html

Older Garmin Vehicles
http://web.archive.org/web/20070410093143/www.garmin.com/veh.

VW Van-White
http://odometer.org/misc/vanagon_gps_avatar.zip

Honda Element
http://www.mediafire.com/?sharekey=0520c6c3e73894bc8c9e7c56b.
Better file = http://rapidshare.com/files/60108418/Element_Garmin.zip.html

Toyota 4Runner
http://www.toyota-4runner.org/attachment.php?s+a8dd25a883403.

Cross Hairs
http://www.gpspassion.com/upload/xhairs.zip

Silver Scion
http://www.mediafire.com/?eiey9bjgf2k

Compass
http://www.gpspassion.com/upload/comprose.zip

White Truck
http://totalfarker.googlepages.com/WhiteTruck.srf

Bmw ista free download. Black Volkswagen Golf
http://home.planet.nl/~knol0401/vwgolf3.srf

Jeep Wrangler, Fiat Punto, Smart, Mini
http://www.nodimarinari.it/Utility.htm

FJ Cruiser: Blue, Yellow, Titanium
http://www.mediafire.com/?0jxrwgrrxby

FJ Cruiser: Red
http://www.fjcruiserforums.com/forumsattachments/stereo-electronics/18742d1199225149-yellow-fj-marker-your-garmin-nuvi-brick.zip

FJ Cruiser: Tan
http://www.fjcruiserforums.com/forumsattachments/stereo-electronics/18745d1199225749-yellow-fj-marker-your-garmin-nuvi-sand.zip

Many Different Vehicles (Mustang, Land Rover, Viper, Honda, Hummer (Site in German)
Requires .rar program to uzip files
http://www.alice-dsl.net/fahrzeuge/html/fahrzeuge_1.html

Mario Kart
http://www.badongo.com/file/8878953

Subaru WRX Wagon
http://www.badongo.com/file/10204697

Honda Ridgeline
http://www.redisant.net/ridge2.zip

Some of Garmins 'older' vehicles
http://web.archive.org/web/20070410093143/www.garmin.com/veh.

Converting png and srf files to create your own
http://www.techmods.net/nuvi/

List Of Vehicle Makes And Models Downloads

Several thousand OBD2-compatible vehicles have been tested by our customers with klavkarr. You can read their feedback on this page. Check that the klavkarr diagnostic scanner will work with your car.

Our registered users have enabled us to create this table, and we thank them. It contains 11282 vehicles tested including 3788 of different types or configuration.

We remind you that the EOBD standard is governed by legislation that states that vehicles must be compatible from a specific date. More information on presentation of the OBD.

To easily diagnose your own car, download our EOBD-Facile car diagnostic software..

All compatible brands (in alphabetical order)

Interpreting table data

The tables on this page represent lists of vehicles that are compatible with the OBD standard (EOBD or OBD2 depending on the country). Compatible vehicles can be diagnosed using generic (multibrand) ELM327 interfaces.

List Of All Vehicle Makes

Table utility

There are several uses:

• While the official dates for implementing the standard have been defined, manufacturers have implemented the standard more or less early. (See the official dates). The list can be used (if your vehicle is on it), to know in advance if you can buy an ELM interface and whether it will work with your vehicle.
• The second piece of useful information is the 'level' of implementation of the standard. In general, the more recent your vehicle, the more diagnoses you can do on it. The tables list the support modes and their parameters.

How was this list written?

We asked the users of our EOBD-Facile software to help create this list by returning their 'log' file of the connection to their vehicle. In exchange for this contribution, the software functions are available for free. The exact procedure is explained on the EOBD-Facile softwarehttps://tinifer.hatenablog.com/entry/2020/10/18/223423. page.

Understanding sets of figures in the tables

Auto Makes And Models List

To understand these figures, corresponding to the parameters (PID), we have included a small program free of charge in our software. It is available from the file menu and PID Decoder