Looking at buying a 2015, 2016 or 2017 DGC. All 3 are SE models. Do these have power enough to keep my laptop going? (I have a small inverter that plugs into my cigarette lighter in my current Subaru Forester, never had a problem). Don't want to drain the battery or whatever on the DGC.

Also wondered if I could climb from front drivers seat to back without exiting vehicle. (I'm 5'4", normal build).

Any other tips? I'll be putting a simple air mattress in back and hopefully a toilet (!) and sleeping mostly in parking lots.