I purchased these for my '05 Grand Marquis which has been tweaked a bit and is a bit of a sleeper. It's not your grandpa's Grand Marquis. I've always owned full sized, rear wheel drive, V8 cars because I drive about 30K-50K a year in S. Florida about 75% of it up and down the turnpike and I-95 usually at 80-90mph and so I favor highway cars. Biggest weather concern is rain and lots of it all of a sudden in the summer so I look for tires that can scavage the water out of the tread efficiently and hold the road. And on dry roads I want handling, cornering and stopping traction. Quiet is nice, too. I've had Michelins, Goodyear Eagle RS but generally favored BFGoodrich TAs over the years for their wide squared off footprint and deep 4-row tread. I was wary of Pirellis because I once drove a car with loud, hard as concrete Pirellis and developed a bias.
After reading the reviews here I took a chance on these. I'm very glad I did. They are without a doubt the best in all categories I've ever owned. They seem to roll with almost no resistance, corner and handle well, stop on a dime, keep a firm grip in the rain and are blessedly quiet. Once my car is up to speed it just rolls with these tires and I doubt she's over 1900rpms at 80mph. I can take the 270° exit ramps at 70mph. I love them and would definitely buy them again.