Over-exaggeration. SUVs were clearly an after-thought in NFSU2, whereas legal street racing clearly has some meaning to it, and it has appealed to some. SUVs were a bad idea through and through, and as a result nobody could really give a damn about them.
@SS89: I'm with ya. That should be the foundations of which all NFS games in the future are based on. I did mention a compromise, IIRC.