This guide will let you know how to Upgrade Cars In Forza Horizon 5. You have to follow the steps in this guide to upgrade the cars.
The first thing you will need to do is purchase a house and then go into the house to access the garage.
You have to click on the upgrades & tuning option on the left side and select whether you can enable a custom update or auto-upgrade, as shown in the image below.
After that, click on the design and paint option, and then you have to select the color of the car part body, and you can customize the whole car parts paint as well.
You will need to go to the Apply Vinyls & Decals option to choose the design or click on the find new design option from the menu. You will find the latest and coolest designs of the cars, as shown in the image below.
Then click on the design you want to apply, and then it will start saving the changes, it will change the design of your car.