As you'd expect, the suspension—unequal-length control arms in front, a multilink rear—has been stiffened ... First, the defining trait of the Mazdaspeed 6 is understeer.

If you're expecting the Mazdaspeed 6 to be ... Changes from the stock Mazda 6 include a subtle lip spoiler, rocker-panel extensions, resculpted front and rear fascias, an RX-8-inspired air dam ...

Plans to launch the Mazdaspeed 6 last summer ... and the line tightens noticeably as the rear axle gets its power. The Mazda 6's multilink suspension remains unchanged except for stiffer springs ...