I think this post from @BoldEagle from January 2020 answers the question.
—>https://livetodai.com/t/daihatsu-2001-cuore-l701-building-a-better-safer-car/2373/50
Quote:
" Here is a site for Cuore vs Sirion;
http://cararac.com/comparison/daihatsu-cuore-daihatsu-sirion.html
You can then assess the weight of the cars and note the Sirion (98-04) is 810KG vs the Cuore (97- 02) is 630KG, 180KG difference, therefore it is clear they needed larger calipers (and thus rotors) with greater stopping potential.
http://cararac.com/dimensions/daihatsu/sirion.html
http://cararac.com/dimensions/daihatsu/cuore.html
If you review any sites like Supercheap and do the vehicle lookup it can be noted that the;
Cuore rotor is 211mm vs Sirion 234mm so they have bigger discs.
When reviewing pads it is noted the Sirion are ~49x94mm vs Cuore ~44x92mm.
So from that it is noted the Sirion rotors are larger with more pad contacting the disc (pad/cm2) and yet they also have a 13" rim for their stock models"