ECE M3 CSL coupe (LHD): 823* examples produced from 5/03 through 12/03
ECE M3 CSL coupe (RHD): 535** examples produced from 6/03 through 12/03
* in addition to 18 pre-production prototypes produced from 9/02 through 2/03
**in addition to 7 pre-production prototypes produced from 9/02 through 2/03
From:
http://www.bmwmregistry.com/model_faq.php?id=19
Quite a nice write up on the CSL and it's differences from the stock M3 etc