Don't expect a comfortable, lay-all-day fit with the Oral Pleasures position. The allure of the Oral Pleasures position is gratification of got-to-have-it-now oral sex in the back of a vehicle -- not a slow and relaxed experience like you'd get in a bed. The end goal of the Oral Pleasures position is to enjoy quick, passionate pleasure for as long as you want it - but for most people, it will not be a position that encourages leisurely lounging or exploration.
Even with the best of intentions, the Oral Pleasures position may not be a good fit for some couples. Narrow cars -- or tall partners -- might find that the Oral Pleasures position feels more like a punishment than an exciting adventure. If that's the case, a variation of the Film and Flutter sex position might be a better fit. Consider tilting the seats backwards to make more space for the giver to do their thing.
Even then, if cramping in on top of one another leaves you chest-to-chest, you just might not have room in this vehicle to pull off easy oral sex. Consider other pleasures like handjobs, fingering or mutual masturbation to get your car sex fix and take your adventure outside of the vehicle for any oral-focused activities.
However, if you're the owner of a roomy SUV, van or pick-up truck, you may find that you have more than enough space to easily lay out for this position. You can even fold down the seats to make a large, flat playground for your sexual activities. If you don't own a spacious car, consider this your excuse to rent one to give Oral Pleasures a try the next time life requires a car rental.