As the title implies, the Carma Sutra is a book that teaches you the various fun ways to have sex in a cramped vehicle.
Written by married couple Alex Gaines and Esther Selsdon, who also happen to be car sex enthusiasts, this 82-page manual has detailed instructions as well as helpful visuals that show different positions for doing it in every type of car.
The book also ranks the easiest and the more difficult positions, enabling beginners as well as more experienced couples to maximize the pleasure they can enjoy in these confined spaces.
Check out some visuals from the book below—it is priced at US$58.
[via Incredible Things and I Born For This]