For changing the acceleration, follow these steps I've made:
Physics files are in:
City Car Driving\data\physics
Engine physics are in:
City Car Driving\data\physics\Engine
Transmission physics are in:
City Car Driving\data\physics\transmission
Steps:
For example, you want a "Car53" to go as slow as a "Car28". To do this:
- 1. Go to City Car Driving\data\physics\engine\*Car codename* (in this case, Car28)
- 2. Copy the files in that car folder; in this case, Car28
- 3. Open City Car Driving\data\physics\engine\*Car codename* (in this case, Car53)
- 4. Paste the files from Car28 to the Car53 folder
- 5. Rename the copied files to the original files in Car53. For example, the original physics files from Car53 are "vaz21126.losts" and "vaz21126.power", but the original physics files from Car28 are "1ZR-FE.losts" and "1ZR-FE.power". You should rename "1ZR-FE.losts" and "1ZR-FE.power" to "vaz21126.losts" and "vaz21126.power" AFTER pasting, so that the game will think that you are using the same physics configurations. REMEMBER TO MAKE A BACKUP OF YOUR FILES
- Do the same for the "transmission" folder.
If you do not get it, ask further

. I did this on the Hyundai Santa Fe mod, so it works

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