Here are 6 activities for a 2.5 year old to do in the car... 1. Play-doh, hammer, golf tees and muffin tin. 2. Make your own sticker book. 3. Magnetic letter sort on cookie sheet. 4. Play with toy cars. 5. Color with markers. 6. String buttons onto pipe cleaners. We also watched movies, listened to books on tape, read books, listened to music, used aqua doodle, etch-a-sketch and did a cool foam puzzle that you build shapes with. All to name a few.