I agree with the concerns about the RAV4 for trailers with tongue weight
similar to the Casita
17'. I have always found the tongue weight
of this model high for the trailer size, and that's a bad combination with a short-wheelbase vehicle. I rejected that model for towing with my Sienna partially for that reason, and the Sienna has a similar drivetrain and much more wheelbase than the (V6) RAV4.
Perhaps the Casita
could be configured for lower tongue weight
by relocating some items such as the battery
, preferably to near the axle
I can believe that the RAV4 is not prewired
for a trailer brake controller, as the only vehicles with such wiring are typically pickup trucks and SUVs sharing truck chassis. That certainly does not mean a brake controller cannot be installed; many of us have done so. It does indicate that the manufacturers find that towing trailers over about one ton is much more common with truck-chassis vehicles than other models, but then as owners of lightweight
moulded fiberglass travel trailers we are not typical customers.