I have used a Tahoe (Suburban with one less row of seats, shorter
wheelbase, fits in standard garage) to tow. Found out that I prefer
the Subaru Outback for all but:
Visibility over trailers, something you get used to.
Starting on a hill, the Subaru has 2.5 liters and manual gearbox.
Off-field landings in difficult access areas.
Extra room to fill with rubbish.
The Tahoe uses much of it's 350 Cubic Inches to drag itself around.
The Subaru handles cross-winds and passing trucks better than the
Tahoe.
The Subaru handles better in any situation other than hill starts.
I have comfortably towed Nimbus 3 and AS-H26e, both heavy gliders,
with the Subaru, usually in the 70MPH range. 15M and Std gliders are
not an issue with most cars.
Unless you need high ground clearance and room for two to sleep in
the back, it's a bit of a waste.
Jim