My friend has a Lumina with the 3100 in it (I suppose it's the series II engine or something...).
Just being a passenger, I do have to say that at low speeds, his car pulls hard. Might not have been as hard as my SVT, but I was suprised. My old 2.8L Grand Prix was a dog... but that was also 130hp in a same size vehicle.
Or maybe it was the low altitude. My SVT pulls like crazy when the secondaries open in a place like Iowa (it was so-so up in Montana).