Not correct Dodge Guy. I checked the owners manual before making the purchase. The Colorado 4x4 can be towed 4 down or dolly towed.
That said, thanks to another poster, I found a dealer locally that has a Master Tow dolly with electric brakes for $1520 plus tax. Still not convinced to flat tow and spend the extra $$ but appreciate everyone’s input. I guess I will learn soon enough if my decision was the right one and I can always sell the dolly and go 4 down at any time if it turns out to be the wrong decision.