“Your P85D can now perform high speed passing maneuvers up to 155MPH when battery energy, powertrain temperature, and road conditions allow”.
This differs from the previous disclaimer (which has now been removed) that was posted on the Tesla website when the P85D deliveries started:
“The P85D top speed is currently electronically-limited to 130 mph. In the coming months, we will be able to upgrade the car free of charge to enable a 155 mph top speed. Additionally, an over-the-air firmware upgrade to the power electronics will improve P85D performance at high speed above what anyone outside Tesla has experienced to date. In other words, the car will be better than you experienced. This free upgrade will be rolled out in the next few months, once full validation is complete.”
Since many Tesla P85D owners have been waiting for the “performance update” we tested the P85D after installing the latest 6.2 software update. The results demonstrated that while the top speed may have been increased to 155MPH, the highway passing power has not increased with the 1/4 mile trap speeds within tenths of each other.
|Version 6.1||Version 6.2 (.153)|
|1/8 Mile||7.406 @ 94.9 MPH||7.32 @ 95.3 MPH|
|1/4 Mile||11.6 @ 115.5 MPH||11.5 @ 115.7 MPH|
Hopefully there are still updates coming to allow the P85D perform as the previous Tesla statement alluded to with regards to at speed performance. For comparison purposes, the P85 we tested with 415HP trapped 110.8 MPH in the 1/4 mile. The 5MPH difference is very small when comparing the 276HP gain the P85D (691HP) has over the standard P85 (415 HP).
Take a look at the v6.2 video below: