In Cyberpunk 2077 you’re given the option to buy cars starting in Act 2. Unfortunately you can’t keep or store vehicles you steal off the streets, but you will be given the option to purchase other versions of them as you play.
The only way you can buy vehicles is by buying them through a Fixer. As you’re wandering around Night City, the Fixer in the area will text V about a vehicle for sale. You can see an image of the car in the Messages section of the Journal in the menu.
To actually purchase the car after the offer is made, you’ll need to go to a certain location. You’ll know where to go by checking the Journal missions under the Rides tab.
Track the job, find the car, and when you approach it you can choose to make the purchase.
The car is automatically added to your vehicle calling list. If you hold down the button to call your car you can see all vehicles available to you! The fixer will confirm you purchase through a text message.
You can also get new cars through select Side Jobs.