Welcome to the forum.
The Grand Vitaras in the 2005 to 2009 range were very well rated ...believe it or not as some Suzukis have not had a good reputation. The Grand Vitara has in that age range has very good crash test ratings (--
go HERE) and has relatively good reliability ratings. It will be made in Japan --a plus, IMO. It's also a very good-looking vehicle. It has very good reviews on Edmunds --
go HERE and cars.com --
go HERE
RayJr is correct, to be flat towed, it must be a model with "4WD with a transfer switch" ...
go HERE for the page of the manual from the '06-'12 that explains the procedure for "recreational towing."
They were "officially approved" for 4-down recreational towing by Suzuki so would be listed in the "dinghy towing guides" that were published back then --
go HERE for the 2006 Motorhome Magazine dinghy towing guide ...see page 28 but as you will notice, a Grand Vitara is being towed behind a motorhome in the cover illustration!
IMO, it will be an excellent vehicle for a toad.