Firefly is trained on a dataset of Adobe Stock where copyright has expired. It is intended to only create images of public figures and non-trademarked content that are available for commercial use on the Stock website (this excludes editorial content).
Your suggestion sounds really interesting! As Adobe Firefly is based on a dataset where copyright has expired, it might not accurately generate specific vehicle makes and models due to trademark constraints. However, I agree that the addition of this feature could enhance the tool's versatility and usefulness.