What options do you enable? If you enable too many options game can crash, if you enable 2 options that do the same thing the game can crash as well.
I enabled Max all cars and pro all cars It didn't upgrade car only showed that it was upgraded so I enabled Max and Pro Upgrades. This worked but game crashed on this setting
I found a way to max pro every car manually but fairly quickly. Open Max/Pro upgrades and open the Max and Pro boxes, CTRL + Click every box that counts as an upgrade. Then, find the car you want, double click the highlighted box and type 10. Do not freeze the values (don't click checkboxes) otherwise the game will crash. If you want to max and pro multiple cars, just go to 1st car, type 10 in all boxes, go to next car, and do the same. Repeat until every car of your favor is upgraded.
How to use this cheat table?
Install Cheat Engine
Double-click the .CT file in order to open it.
Click the PC icon in Cheat Engine in order to select the game process.
Keep the list.
Activate the trainer options by checking boxes or setting values from 0 to 1
What options do you enable? If you enable too many options game can crash, if you enable 2 options that do the same thing the game can crash as well.
I enabled Max all cars and pro all cars It didn't upgrade car only showed that it was upgraded so I enabled Max and Pro Upgrades. This worked but game crashed on this setting
I found a way to max pro every car manually but fairly quickly. Open Max/Pro upgrades and open the Max and Pro boxes, CTRL + Click every box that counts as an upgrade. Then, find the car you want, double click the highlighted box and type 10. Do not freeze the values (don't click checkboxes) otherwise the game will crash. If you want to max and pro multiple cars, just go to 1st car, type 10 in all boxes, go to next car, and do the same. Repeat until every car of your favor is upgraded.
Unfortunately, the upgrades are client sided and do not stay if you reopen the game.