The Highlander is a CUV derived from the Sienna Mini Van...why it is so close to
your mini van's measurements. First gen Highlander was derived
from the Camery
I'm not a fan of hybrids for towing...or from most of the OEM architectures I've
read up on. Have not read anything on the Highlander hybrid.
Issue is that the batteries should not and do not like to be discharged below
a certain percentage. Harm to the batteries and one main issue is that they will
never fully charge again...has to do with the chemistry inside the battery...maybe
they have improved that point
Electric motors do NOT do well with sea water. Worst are copper wire wound and
most DC electric motors are of that construction...unless this Highlander Hybrid
has an AC motor, but the cost of (losses) in the inverter would negate some MPG
But, that is just my thoughts and hope you find someone who has a long term
experience with this vehicle. My comments from background, reading and training
in the controls industry, which think apply