Four seaters ALWAYS outsell two seaters.  It's a fact of automotive nature.  And relatively new models such as the RX-8 invariably [out] sell cars like the Miata
nearing the end of its life.  My wife was pregnant with Steven at the Hawaii launch of Miata.  He is now 15.  Obviously he has changed from a fetus into a
strapping young man who could easily knock the crap out of you and me combined.  The Miata has changed very little.
The new Miata won't be a Miata.  It will be an MX-5 in keeping with current nomenclature style.  It will stay with a small piston engine.  The Pontiac
Solstice due soon will supposedly start below $20,000.  The cheapest miata today is $22388.  And you want a Rotary too?  That would be $28,000 or more.
The next car in line is a reprise of the RX-3--a rotary powered coupe with two doors and two seats.  If that flies, there might possibly be an RX-7 some day:
a true rotary sports car.  I'd say it's at least five years away assuming Mazda stays on a positive track which is arguable.
ds

 
The Green List only. A list of influential engineers concerned with the environment.

 http://home.earthlink.net/~rotaryeng/