Actually, a 4-down towing of standard shift transmissions is NOT all that common anymore. Moot point since you're not gonna get one anyway.
As for auto trans vehicles...many GM, Ford, and Chrysler cars are 4-dow towable. Let us know what "type" of toad you're looking for and I (for one) can look in my 2014 guide and let you know.
Our GMC Terrain (sister to the Chevy Equinox) is a very good toad. A little larger than the CRV, but still small enough to tow behind a Class C that has a 5000 lb towing capacity (yours does...doesn't it?).
Jeeps are probably the most prolific vehicles used for 4-down towing.
Hope this helps
Ron
Ron & Sandie
2013 Tiffin Phaeton 42LH Cummins ISL 400hp
Toad: 2011 GMC Terrain SLT2
Tow Bar: Sterling AT
Toad Brakes: Unified by U.S. Gear
TPMS: Pressure Pro
Member of: GS, FMCA, Allegro
RETIRED!! How sweet it is....