Published 2007
Battery Info
13xW-4-11/16xH-8-1/4. A Miata-Westco battery Part #12V31M may fit as well.
Type 24 fits later years and possibly early as well.\\
Dimensions on the 24 are L-10-1/4xW-6-13/16xH-8-7/8
Optima Red 75/35, Model 12853-fits but tightly
Optima Yellow-Top 51R
I am sure there are other options.