Spec Miata Documents ARMS Spec Miata Championship Rules – updated April 26, 2017, with tire rule ARMS Spec Miata Championship Rules – Appendix B 2016 SCCA GCR 9.1.7 ARMS Spec Miata Championship Rules – Appendix C 2016 SCCA GCR 9.3 & 9.4 ARMS Spec Miata Championship Rules – Appendix D Setup Guide SM Mazda Logo placement