Carpet the Trunk
I carpeted a Magnum (79) truck. The big problem is getting a wide enuff rug to fit in or be forced to use 2 peices. I was lucky enuff to find a store that had a rug fit for trunk duty that had it on a 6ft wide roll. This is the tuff part.
You'll need to measure how deep the trunk is and how wide for your basic diamention, add at least 1 -1/2 foot to it since the trunk isn't flat. Better to have to much than not enuff. Over ets. the length is pennies compared to a re-purchase of more.