Fully Upgraded Level 399 978HP Pagani Huayra BC gameplay for Need For Speed Payback. Showcasing it's overall performance in 3 events. The speed cards/upgrades of the Huayra BC is shown at the end of the video. Played with keyboard and manual transmission.

Timeline:
0:07 - Bridge Trial, Time Trial
3:05 - Mountain Run, Sprint Race
5:06 - Ember Valley Showdown, Sprint Race
8:44 - Performance, Stats and Speed Cards

Pagani Huayra BC Race Spec Performance review:
Keep in mind I have not driven all lv399 cars yet in Mountain Run, but so far this is the 3rd fastest car I've driven and it's handling has all the lovely "Carrera RSR" handling and features that makes it a strong car.

Acceleration is strong, so as NOS power, almost equal but a little tiny bit weaker compared to the Carrera RSR. It's handling is one of the best in the game which has high drifting speed, angle and exit speed after drifting. It also has high base top speed too, having almost no speed perks and brands, it's equal to my Carrera RSR's build with speed brand bonuses and perks. It's quite planted too with good downforce despite running on the lowest downforce settings (1 tick from lowest).

Of course there are a few tiny issues. The drift is a bit less responsive compared to the handling king Carrera RSR, but this could due to my build having no brake bonuses at all (RNGesus wasn't nice to me). But perhaps my biggest complaint with the Huayra BC is it's steering while gripping. It's extremely responsive. Too sensitive to the point I had to run low steering sensitivity on the slider. It also loses quite a lot of speed from gripping, so you have to microdrift every corner. You can easily lose a lot of speed from it's sensitive steering and high speed loss from gripping.

How does it compare with 911 RSR and Regera:
1 second slower than the 911 RSR which makes the Huayra the next biggest competitor to the OP duos. Ticks all the stats in terms of handling, acceleration and NOS power. If you want an alternative to compete against Regera/RSR dominated lobbies, this is the next alternative for you.

Soundtracks:
NFS IV - Bionic
Initial D - Power of Sound
NFS Carbon Composed Music - Crew Race 10
NFS Carbon - Tuner theme