Yes, you can acquire cars in Grand Theft Auto V's Story Mode, but not through a traditional dealership-style purchase system like in GTA Online. The primary method is simply finding a car you like on the street and taking it. Once stolen, you can drive it to your character's primary garage or one of the save spots scattered around the map, and the vehicle will be stored there for future use. This is the most straightforward and cost-effective way to build a collection.
Beyond stealing, you can acquire specific, high-end vehicles through mission progress. For example, completing the mission "Father/Son" for Solomon Richards unlocks the ability to find the rare "Space Docker" dune buggy. Another method is using the in-game internet on your phone or a computer to access websites like Southern San Andreas Superautos. However, this is mostly for cosmetic customizations rather than buying the car itself. You first need to steal a car and take it to a Los Santos Customs shop. Then, if you choose to invest in a "Tracker" and "Full Coverage" insurance, that car becomes permanently saved to your garage, essentially acting as a purchase.
The game also features a "Special Vehicles" list in the Stats menu. Finding and storing these unique cars is a major collectible aspect of Story Mode. So, while you can't directly buy a car off the lot with a click, the game provides multiple, engaging systems to permanently acquire and customize a wide range of vehicles for your characters.
