I don't think it would've been possible for Ford to just completely swap the IRS from the old SVT Cobra, seeing how it used the foxbody chassis, which wasn't just different but 25 years old. It could be done, but it takes a little bit more than a few new mounts... it would need a ton of fine-tuning.
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agreed. it wouldnt have been a direct fit, but more of a starting point for them.
And the 'Stang fans who like the solid axle are, for the most part, guys who realistically don't own a GT500 and probably never will. Nobody complained about it when the SVT Cobra had an IRS.
plenty people i know (including my father) said it makes launching the car hard somewhat difficult. even then look at what all the previous mustangs have had. solid axles. even the 5.0, the best 1/4 mile racer has solid axles. the svt cobras needed beefier half shafts and differentials to put up with the power or else they would shatter. the solid axles on 5.0s never had those problems.
In the event that the car is a drag strip monster and no longer a daily driver, then yes, the solid rear axle would've been a cheaper, more suitable setup, but I'm sure an overwhelming majority of GT500s are daily driven and always will be.
plenty of people daily drive solid axle mustangs with no problem
And it's not like an IRS would hamper its quarter-mile performances anyway, it would only increase its cornering prowess. But yes, it should've at least been an option, that would've been a wiser choice, but I feel that the majority of buyers would still opt for the IRS. The price difference between the two wouldn't sway any buyers when it's already a $40-45k car, but the increase in handling and handling feel would already be worth it.
having a solid axle makes it easier to launch harder. and its beefier to handle the torque. thats why it has a solid axle. if the car was built for handling, it wouldve had an aluminum engine, naturally aspirated, and had irs. even then the gt500 with the solid axle outhandles the svt cobra with its irs. owners of both say so. and with the prices being marked up by dealers because of their greediness, im sure noone would want to pay another couple of thousands for irs.
heres some of them who prefer the heavier gt500 with live axle over the cobra with irs even for handling.
http://svtperformance.com/forums/showthread.php?t=323424&highlight=irs+solid+axle