Here are the pictures from this past May when I loaded up my car and headed back up to MI for the summer from NC.
This is about as full as a cobalt can be. The whole trunk was just plants. Much of back seat was too. I had them in bags and boxes. Slugs, spiders and ants started crawling around with us during the trip.

Everything in this pic is plants.

See the greenery now. The canvas garden tote you see is all seeds! That empty space you see was filled after this shot. Its where we put my back pack and my brothers stuff.

I had 30 tomato plants, 9 hostas, 10 heucheras, 15 astibles, 5 hellebores, veggies, herbs, assorted perennials, etc.... I have a problem.