I'll just chime in here for sec.  

Road Rally is a BLAST.  It's not always (but occasionally) the 11/10 on the butt-clenching fear scale, but running on open roads offers DIFFERENT challenges, even though the speeds are legal.  Certainly, I have a long way to go, but my driving has REALLY improved by doing a lot of road rallies over the last 2 years.  

Road Rallying runs on many similar, or often SAME, rules as performance rallying.  It's a great training ground, and at $20-$90 a pop (depending on series etc), it's dirt cheap seat time compared to ANY performance events.

Road Rallies are run "blind" (no pace notes etc), so you REALLY have to read the road, and find your rhythm.  This is an excellent, and cheap, way to improve rally driving skills.

Cheers and zeros,
Craig