While it is not advisable or ethical to obtain CarMaker software for free through unauthorized means, there are legal alternatives to access and use similar software for automotive simulation and testing purposes. Many software providers offer free trial versions or limited-functionality versions of their simulation software that you can use to explore and learn. Additionally, some academic institutions provide access to CarMaker or similar software for educational purposes. It is recommended to reach out to universities or research institutions that have partnerships or licenses with automotive simulation software providers to inquire about potential access options. Remember, respecting software licensing agreements and supporting developers ensures the sustainability and future advancements of such tools.