I am thinking of finally getting new tires for my 2016 Charger Hellcat which came with the Pirelli All Season Tires. Thinking of going to the Performance Summer Tires. But TireRack shows the OEM one being closed out:
All the others are brand specific. TireRack person told me to get the GM spec one (TPC):
On Pirelli’s web site they list the Bentley spec one for our cars (when I enter vehicle info):
www.pirelli.com
Which looks like it would be this one:
Then there are also variations for Porsche and BMW. All a bit confusing…. I might check with my local Dodge dealer if they still offer one that is non brand specific. Anyone know what the differences are and which one to get?
And one additional question
. What is the main difference between the Michelin Pilot Sport 4 and 4S? Other than price and availability. 
Thank you!
All the others are brand specific. TireRack person told me to get the GM spec one (TPC):
On Pirelli’s web site they list the Bentley spec one for our cars (when I enter vehicle info):

P ZERO™ 275/40R20 | Pirelli
275/40R20 - P Zero: The expression of Pirelli tire technology in the Ultra High-Performance segment for cars and SUVs. Buy now!
Which looks like it would be this one:
Then there are also variations for Porsche and BMW. All a bit confusing…. I might check with my local Dodge dealer if they still offer one that is non brand specific. Anyone know what the differences are and which one to get?
And one additional question
Thank you!