Electric Tow Vehicle (Tesla)

I would be looking for a truck that could do 50 to 100 electric miles before the gas kicks on. Also have the electric to help get up the hills and recapture energy on the way down. Around town as a grocery getter it could be all electric. Unfortunately I don't think that is what Tesla will build but maybe inspire Toyota/Ford/GM. And of course recharging at a campsite would be sweet ;)