The antonyms for the phrase "car rides" could be various, depending on the context in which it is used. However, some possible opposite phrases could be "walking excursions," "bike adventures," "boat travels," "train voyages," or "airplane journeys." These antonyms offer a range of different modes of transportation, each with its own unique experience and benefits. While car rides may be convenient and offer a sense of privacy and control, other methods of travel allow for more physical activity, diverse scenery, and opportunities for socializing or relaxing. Switching up transportation methods can add variety and novelty to one's travels, making them more memorable and enjoyable.