So I picked up my Ludicrous-upgraded P85D from the service center last Saturday. I was only the 5th they did there, was shocked by the low number, am I the only fool to fork out 5k for this upgrade?
Anyway, the drive home was about 62mi (100km) so plenty of opportunity to test.
At first I thought "meh, is this it?" but gradually you start noticing the difference. As noticed in this thread already, the launch to about 35mph (55kmh) is about the same as a normal P85D but after that I notice a real improvement, the pull is much stronger and seems to last forever. Warp speed enabled!
I also did some high speed passing tests from 75mph (120kmh) to 125mph (200kmh), really amazing wow!
Where previously the P85D at highway speeds felt like a "normal" P85 (I previously owned a P85 for 2 years), now the extra push in the back is definitely noticeable.
And at lower SoC like 20-50% the pull is noticeably better than in a normal P85D.
I am really happy with the upgrade, you get to feel like "king of the road" by having this kind of power under your feet, its amazing!
Oh and they stick a cool underline on the badge as well