rrocket,
Yes, I think you are correct. They will not release that kind of info. I have been on this case for quite some time now because I would like one of these smaller vehicles that I like to be able to do the job, i.e., pack a small utility trailer to the dump. I have seen some cheaters out there bucking the system. A Kia Soul at the dump packing a trailer and a friend of mine sent me a snap of a Toyota Yaris with a rig attached behind it. You can beat the system, but who knows how the warranty will be affected.
Toytota does not list the 1.8 or even the 2.4 Corolla as trailer capable. Like I say, the only one listed officially is the 2.4 Matrix - 1500 lbs. The Scion XB with same equipment is not allowed. Must be this liability business as rrocket above states.
I was looking at the Mazda 3 Skyactiv. Great motor and the same one ( 155hp ) as the CX 5 which is rated to tow 2,000 pounds - it seems to have a slightly different frame. But, the CX 7 has the same kind of frame as the Mazda 3 ( unibody with triple H construction ) and is rated to haul 1500 pounds. My top choice for a vehicle right now is the Mazda 3 with this great new engine. But, no dice on the trailering. You will have to defy the system if you want your way.
Officially, as I say above, the Chevy Cruze and Ford Focus are listed for towing 1,000 pounds. Ditto for the new Chrysler 200. If these guys can do it then why not Toyota and Mazda? What gives??