So I saw your Trevors Bodhi Mod for the game and you say its a new added Car rather than a re placer so is it possbile to add more cars than that is that a thing ? i have no idea about coding or modeling of any sort and would be cool if you could do a like Iconic Cars Mod with stuff like.
The Simpsons: Hit & Run is a 2003 action-adventure game developed by Radical Entertainment and published by Vivendi Universal Games. It is based on the American animated sitcom The Simpsons, and is the twenty-second installment in the Simpsons series of video games.
-Back To The Future Delorean All 3-Ghostbusters Car
-Austin Powers's Car
-Dukes Of Hazard General Lee
-Some Batmobiles (Tumbler And Arkham Asylum One And Classic 60s)
-James Bond Aston Martin DB5
-Anakin Skywalker's Land Speeder
-A Team Van
-National Lampoons (Chevy Chase) Station Wagon
-Starsky and Hutch Car
And More Like It.
If its possible please message me :3 Thanks !
Simpsons Hit And Run Online
-WesFirst we are going to need a few prequistes.
Blender
Lucas's Mod Launcher (duh)
Lucas's Pure3D Editor
Lucas's Car Renamer
Lucas's RCF Explorer
The car model you intend to port
Firstly after you aquired your 3d model in OBJ format, we can import it into blender.
Now (depending upon what you want) you cut and paste meshes like the doors and wheels if you want real car damage.
Now to center the car in the model, you need to hit these keys in combination Ctrl Shift Alt C and select Origin to Geometry.
Then move the car to the center of the blender space. I would export another car's model from SHAR and use that as reference. Now when you have the car body ready, go to Export and be sure to select this check box.
Now we will use one of Army of Cola Remastered's cars as a template. Now import your model for the main body.
The car will be pink, this means there are no textures asigned to it. We can make textures by importing image files and adding them to a shader.
Be sure to change the shader type from Simple
Simpsons Run Hit Pink Car
to environment and type EnvMap.bmp if you want the car to have reflection.Now to assign shaders to the car, go into the mesh and change the names of the meshes to the shader name. The last thing we need to do is move the wheels so they are properly alligned to the car. This can be achieved by going to the skeleton of the car and changing the corrdinates for W0, 1, 2, and 3. W0 and 1 are the rear right and left tires.
While W2 and 3 are front left and right.
Now we have to add the car to the game, give it sound, and give it stats.
We have to create the file CustomCarSupport.iniThen we have to rename the car and give it a free index entry. 90-250 are free I believe.Now we have to extract car_tune.spt from scripts.rcf
Just copy an entry and rename the car name on the top to the file name of the car.Now we need to copy a con file so the car has stats. Copy one from 
scripts/cars/CARNAME.conFinally we need to add phonebooth icons for the car, and a copy of the car for the showroom. Be sure to make one for both the car, and damaged. Name theseCARNAME.png and CARNAMED.png. Now we just copy the car to art/frontend/dynaload/cars/carname.p3d you can also do this to make the shop car smaller in file size.