When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
id rather have a hard tire and get 60K miles out of them...
Your choice if course, handling and traction are of most importance to me--IMHO one might as well drive a Corolla as put 60,000 mile tires on a Mustang...
In addition to what has already been said, I suspect that most, if not all, the rubber bushings of control arms are pretty worn and will certainly contribute to the symptom you describe. I can recommend you pepe my Official Suspension Guide for some info on ways to address handling if you are looking for beyond-OEM performance of your ride
I bet you have all kinda of bushings, ball joints, etc. that need placement with that age and milage. My car with only 38k had a little bit of a "darting" feel. I think these cars are a little unstable from the factory settings and leave a lot of areas of improvement to get the handling a lot of people expect from a sports car.