Differences
A P/U drives far differently on slippery roads than automobiles. Esp front drive autos.
Adding weight to the back is not only recommended, it's vital. Even then, the learning curve can be steep. I know you're sensible enough to take it easy, but be careful until you find your comfort zone. I've driven a P/U for most of my life, in all sorts of conditions. Once you figure out the peculiarities of a P/U you're Ok. But finding the limits can be somewhat ... painful.