So does the 2015 Mustang have IRS or no?
Still cant find any documentation. Guess we will have to wait till tomorrow. From Jalopnik coverage: Perhaps the most significant 50th anniversary present is Ford giving the Mustang independent rear suspension. For every Mustang changeover since the '90s, there's been rumor of the car adopting this feature that has kept it in the dark ages as far as some drivers are concerned (yes, yes it showed up briefly in the Cobra). And yet, Mustang enthusiasts have long said the solid rear axle is just fine and that numerous changes have made the car less trucklike to drive normally. But the times have finally caught up with the old girl. That IRS will also allow the car to be more effectively packaged than before.