the mazda 6 is based on the same platform as the Ford Mondeo (euro version of Ford contour) & the volvo S80 i think…& possibly one of the small jags.
pretty sure its different then the fusion/milan
its had the same platform since it came out in 03
i think the new mazda 6 that comes out in 08-09 is gonna be based on the MKZ & get the 3.5L v6 from it…& not the 3.0 from the fusion/milan