Can you remote start any car?

No, you cannot remote start just any car. Remote start capabilities depend entirely on whether the vehicle is equipped with a factory-installed or aftermarket remote start system. Many modern cars offer this as an option, but many older cars and even some newer, less expensive models do not. Even if a car *has* a remote start system, it won't be possible to start it remotely from *any* device – it requires a compatible remote or app.