Include an image of the auto, and do a little journaling about the vehicle's features and capabilities.
You can include photos of your craft space, pictures of you shopping at your favorite store, reduced copies of some special layouts, and journaling that describes some of your favorite aspects of scrapbooking.
At the bare minimum, a heritage scrapbook page should have journaling that includes the date the photo was taken, the full name of every person in the photo, and a short description of the photo location.
However, detailed journaling is what transforms an ordinary scrapbook into a treasured family keepsake.
While creating journaling based on your own perspective is fine, you may also want to consider asking your family members what stories they would like to preserve for future generations.