There are several sites online that will help you with towing. Remco and FMCA have a good list. You may be able to tow the Mazda 3 4wheel down but you might also have to make some improvements/modifications to tye car to do so.
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee,with Hemi, hooked up with a Blue Ox Aventa LX, and Brake Buddy.