Suspension
All Performance Model S come with a suspension setup that is optimized for the performance and handling that Elon mentioned. P85D & P90D have stiffer dampers and suspension bushings than the standard suspension — this means the car has a sportier ride, with reduced roll, reduced suspension travel, and enhanced steering connection.
Tire Setup
We have at times delivered P85D on a “square” set up (same 245/245 wheels/tires on front & back) and not a “staggered” set up (wider wheels/tires in the rear: 245/265). With all-wheel drive , the necessity of a wider rear tire is reduced as torque is also delivered to the front axle. This means that the driving experience of the P85D will be just as exhilarating with the 245 tires on the front and rear, along with additional advantages associated with lower operating costs (i.e. Increased tire life, ability to rotate tires, etc.).
The staggered fitment tires do slightly enhance the handling of Model S in corners. Because of this, all P85D and P90D orders with 21” wheels will receive staggered fitment Michelin Pilot Sport PS2 tires,