Motor Trend hints to us muscle car enthusiasts that the Mustang might be sporting an IRS rear suspension for 2014. Ride quality has always been sacrificed due to the straight rear wheel axle. On the flip side of that though, once they go to a IRS suspension the Mustang won't hook as good. I think some Mustang fans will like this decision while others will not, that's of course of Ford end up going with the IRS, it still hasn't been decided yet.