BMW BMW M440iX GC Tyres

I'm writing to share my experiences with Pirelli tires, as I've had two instances in the past decade. The first was around 10 years ago when I fitted a set of their all-season tires (I do not remember the model). At first, I found them quite peculiar; for the initial 500 to 1000 miles, the car had an unsettling floaty feel at speeds 45-55 mph on concrete roads. It felt like driving a boat! Over time, it improved, but I only put 16,000 miles on them before replacing them.

My current experience with Pirelli P Zero All Season tires on my BMW has been much worse. They're factory-fitted, but the car's handling is unpredictable. Some days, it's bearable, while others, tramlining (following road grooves) terribly on the same roads at the same speed, seemingly temperature or maybe moisture dependent. After about 350 miles, highway driving feels like I'm navigating a high-speed boat in choppy water. These tires might excel on German autobahns, but they're far from ideal for Colorado's concrete roads. The ride comfort is virtually non-existent; they transmit every road imperfection, even with the adaptive M suspension in comfort mode. Uphill driving on curved roads induces a slide-like feeling. I'm extremely disappointed with these tires.

I've tried adjusting tire pressure with no noticeable improvement.