Kind of make sense mate BUT,
Evo VI regardless still a secondhand car, if not has been trashed badly from Japan so the condition will never be the same where the XR5's test is latest and realistic. Offcourse Evo will be faster but i said the responsive almost felt the same.
I've never actually get to driven the MPS but Mazda has good reputation too so i won't doubt that it won't be good either.
As for skylines, i think i know them pretty well, in fact i LOVE it , i had a 13s R33gtst for over 3years, then an 11sec R32 gtr for 3 years as well and both time are on street tires too. Nothing beat a straight SIX in top end.
For some reason, i still don't believe that the XR5 clock a 15.2 over the quater because my little Starlet Gt hit a 15.8 with just cat back zorst and the XR5 definately felt much faster than my Starlet, just a thought though.