Hello - my best friend and I are planning our Great American Road Trip - looking for best route to see great sights (leaving Baltimore and flying back from final destination). From reading several posts it seems like coast to coast is not doable. We don't want to drive for more than 4 hours a day. We are fine with sleeping at new, clean motel 6 but prefer Comfort Inn/Sheratons. So we were thinking that with just the 2 of us maybe $3000, if we bring 2 teens and 10 yr old that it would be about $4000. We are trying to figure out what is the best rental vehicle for comfort for 5 (so kids can sleep) and the best place to rent. One Way rentals seem to be outrageously expensive. (We are estimating $500 for gas). If you can suggest a scenic trip that won't completely wear us out - we want to see Montana - Mt. Rushmore, Yellowstone, and some beaches. Can you help?!