Thanks guys. My pleasure.
To clarify the differenes between the different model series 3s:
Had all the electric features standard including ETR combo stereo with EQ and joystick fader (this was the same style stereo fitted to 1983 GSL models in the US and the 84-85 SE-Limited in Japan), plus front and rear amplifiers
Power antenna with auto-retract
14X5.5" alloys with the rising sun cutout motif
Chequered colour matched cloth interior trim in brown, off black or wine
Seats have adjustable headrest, with driver's side adjustable lumbar support
Leather-wrapped and stitched steering wheel
2tone paint optional
Same as Limited including same interior and alloy wheels, except:
* AM/FM tape deck radio with 4 speaker system (front external amp only)
* quartz digital clock in place of joystick fader
* no power windows
* no power mirrors
* no headlight washers ie has different front bumper skin
* no sunroof option (hardtop only)
* no 2tone paint option
Very few of these appear to have been sold, so much so that I don't think that I have actually seen one. I don't have any pictures of one.
Same as deluxe, except:
* kerb weight of 1070kg (25kg less than the Limited)
* rubber rear spoiler the same as fitted to European and JDM models
* no air conditioning
* no rear wiper/washer (s1 style glass hatch)
* basic plain black vinyl and cloth upholstery without colour matching, rest of interior plastics/vinyl in the off black scheme only
* series 1 style bucket seats with no driver's lumbar support
* no leather wrap on steering wheel - moulded urethane only
* no power antenna
* 14x5.5" steel wheels, not alloys
* LSD was available as an option (not for Limited or Deluxe)
Although air conditioning was not available, the only 2 series 3 Sports I've come across in person had air conditioning fitted by the dealer. I've got the full service books for one of these and the A/C was actually fitted after delivery. Pretty weird to have done that, when for only a little more than adding A/C they could have just got the Deluxe or the Limited.
Here's the specs page from my Mazda RX-7 Sports brochure. The brochure is black and white and doesn't have any photos of the actual car!
Here's the Sports style interior, which you'll see is a lot more Spartan with console pocket, digital clock and lots of blank switch panels. No leather on steering wheel. This belongs to a space yellow one in Sydney:
Finally, (from page 1 of this thread) here are the 14" steel wheels originally fitted to the Sport - actually the same as fitted to base models in Japan as well. You can see the rubber rear spoiler too:
It took a long for me to properly figure this out and post here but I've been wanting to clarify these model differences once and for all.
I will definitely post up my brochures some day. I tried scanning them but they were a weird paper size. The Sports one in particular is quite rare, so I feel it's important to share here for posterity.