Interiors
Back in the 90s, car manufacturers offered lots of extravagant leather types and color combinations. The Z3 was no exception!

Interior color references / codes

Legend:
- SS: Only wih sport seats
- S+S: Normal or sport seats
- 2T: Two tones


Type

Color Pastic Color code Extended leather SS 2T
Oregon Leather Black / SS . R5SW R6SW S+S /
Oregon Leather Black / SS .. Q2SW R4SW S+S /
Oregon Leather Black . Q3SW / / /
Oregon Leather  Beige / SS . Q2SN Q4SN S+S 2T
Oregon Leather Beige . R5SN / / /
Oregon Leather Beige . Q3SN / / 2T
Oregon Leather Violet . Q3VI / / /
Oregon Leather Violet / SS . Q2VI Q4VI S+S 2T
Oregon Leather Mossgreen / SS . Q2CA Q4CA S+S 2T
Oregon Leather Mossgreen / SS . Q3CA / S+S 22TT
Oregon Leather Taninred / SS . Q2TD Q4TD / SS S+S 2T
Oregon Leather Dream red / SS . Q2TL Q4TL / SS S+S 2T
Oregon Leather Topasblue / SS . Q2PB Q4PB / SS S+S 2T
Oregon Leather Apricot . Q2ON / / /
             
Fabric Anthracite . D5AT / / /
Fabric Terracotta . D5TC / / /
Fabric Aquablue . D5AG / / /
Flat-weave fabric Anthracite . H1AT / / /
Flat-weave fabric Dream red . H1OS / / /
             
Leatherette Black / SS . K3SW / S+S /
Leatherette Apricot . K3ON / S+S /
Leatherette Light grey / SS . K3TH / S+S /
Classic leather Beige . R7SN / / /
Classic leather Black . R7SW R8SW S+S /
Classic leather Impala / SS . R7CP R8CP S+S /
             
Chameleon leather Lotuswhite / SS . V3LO / S+S /
Chameleon leather Dream red . V3TL V4TL / 2T
Chameleon leather Topasblue . V3PB V4PB / /
Chameleon leather Black . V3SW V4SW / /

COUPE

           
Nappa leather Taninred . Q8TD O2TD SS /
Nappa leather Topasblue . Q8PB O2PB SS /
Nappa leather Beige . Q8SN O2SN SS /
Nappa leather Walnut . Q8SY O2SY SS /
Nappa leather Black . Q8SW O2SW SS /
Nappa leather Dream red . Q8TL O2TL SS /

Source: Danny's BMW Z3 Roadster site