My Opinions: CAR WASH - get a power washer, but be careful not to have the water sit on the hood or somehow get under the hood and sit on the engine, because you'll likely be having to take it in for a new engine... I like the idea of the bigger tank, I'd sacrifice the 2nd row for that or the trunk. Get rid of all the sensors, move the entire gauges and dash to the middle screen as I really don't need it, besides the passenger/navigator needs that information far more than I do, unless I am navigating, plus its a ton bigger and would be nice to have complete access to set everything up as customizable without having to include more screens to the vehicle. Remove almost all of the sensors besides the fuel sensor. If I am able to fit the 6.2 in this, it may happen, but it is so damn tight under the hood with a sequential 6 speed, Sparco / Saebelt Race Seats, 6 point harness belts, Rollcage from Hellbent Performance in St. Louis, MO. Winch, Snorkel and engine seal for water - so we don't run into more water issues that continue to cause hell even when crossing the flooded road low speed.