I did merge the CAR mod and it definetly does not reduce turn times by 15% (unless everyone plays huge maps these days and does an ai Autoplay for 400 turns before playing). Even if the average speed gain is much lower than 15% it is still a very nice mod.
Thanks for using our Mod. BTW, do you have some test result that I can take a look at? The speed change in our experiment is on the first 90 turns of AD1000 scenario, so I'd like to know CAR's effectiveness in other experiment settings.