We have a 170WB extended length 2016 Sprinter that is all electric. Since we usually don't dry camp, we weren't too worried about depending on electric heat. Ours was upfitted by Sportsmobile in Indiana. We have a roof a/c that has a heat strip, and we carry a small ceramic heater if we need more than something to take the morning chill off. We have no solar panels, but we have 2 100Ah AGM batteries, a 2000 watt inverter and a second alternator that charges only the coach batteries. The engine can produce about 20A of 120v ac current for as long as the fuel holds out. As far storage for outdoor camping gear, we took advantage of the extra length by keeping the last 15-18" of the coach free from floor to ceiling. We have tie downs on either side of that area and use it to store stuff like camping chairs, electric cords, broom, golf clubs on occasion, etc. It is not 4wd, but that was mainly because it was taking so long to get 4wd from MB. We have standard running boards, not the fancy streamlined kind, and standard sized tires. The van has 9 inches of ground clearance at the lowest point and handles light to moderate snow on paved roads quite well.