it may not just be the car, it also may be the road conditions. Cause you got all that dirt, oil, other fluids in the road surface, mixed in with rain, equal very slippery road condition, also if its a new paved road, that can be a killer slippery road too...

 

There is no question that it depends on the tires. Are all the stang's coming with the same tire? GT as well as V6? 05 or 06?

 

Tire pressure will make an enormous difference with hydroplaning as wel as tread pattern. Too much or too little air can both cause loss of traction on wet roads as a tire's is designed to have a particular footprint to shed water properly.
Try going a few pounds either way with the pressure to see if that helps. Also, if swapping to new ones, my experience with GoodYears has been good on wet roads but they aren't the tire to buy if you want them to last.

 

Slow down

 

My experience with the stock Pirellis in the rain is a two-sided one: launching from a traffic light and immediately cornering (even at 20 mph) will cause the rear end to slide, whereas driving 145 mph on a wet Autobahn in Germany felt like being on rails. This makes me think that it's the car's huge low-end torque, combined with a medium-quality rubber, which causes the car to slide in the wet.

 

Had the back end slide out in the rain before...

 

I have Ford polished bullits/stock tires.
Mine does fine with the as long as I dont turn the traction control off.

I think if your having problems with stock tires and rims, you may have something on the car not right. Would have it aligned first. Then if not fixed back to dealer.

 

Well with the BFG's it's rather nerve wracking at highway speeds, I'll agree the car hydroplanes too easily, maybe it is the tires but when I get up in the morning and it's raining hard out I jump in the F350 to go to work.

 

I'll be getting better tires (and new rims) when my stock Pirellis wear out.

Going for 18x9 rims.

 

I actually look forward to rainy days....Slip N' Slide baby!

 

Ghost GT, I hope while in your Higher place of learning the value of life may arouse a desire to preserve your own. Or maybe your youthful excuberance got the best of your post. I wasn't much older than you when as a passenger in a '95 Corvette we went off the road and flipped nose over tail several times then rolled several more. My best friend was driving and while we were both ejected, he didn't make it. No seat belts, but in this case it saved me, the vehicle was so demolished I wouldn't have survived if buckled in. I received a broken neck, hip, both shoulders and three places in my back. 5 years of recovery so far. Then not learning from that experience I was driving a little too fast in my Ranger this past spring when I hydroplaned and rolled down a ravine. Luckily I only broke my collar bone and sustained another severe concussion. O.K. I've learned, no more riding really fast in a Chevy, only driving really fast in a Ford. And no more driving anything too fast in the rain. But in a Mustang too fast should not be 45 mph.