We towed a Saturn for several years and were very happy then for one year switched to a Nissan Pathfinder manual transmission. Found that the amount of off-road driving didn't justify the lower MPG of a SUV. Now we pull a Nissan Sentra manual transmission.
All three were pulled using a Blue Ox towbar and baseplates with the exception of the Sentra needing a roadmaster baseplate because Blue Ox hadn't engineered one for the 05 Sentra. A roadmaster adaptor works great with our BlueOx towbar.
I believe there is a site
http://www.towingworld.com/ that lists special conditions for various makes/models of cars.