Not dead
Those are some lovely sounds, great job!
But I feel like the pitch of the sounds at high RPMs is too high.
I've watched tons of onboard footage from recent years until now and I've never heard a real engine with a pitch that high when reving close to RPM max.
Here are some reference videos from different years, 2015, 2016 and 2018 (it's fine since the engine didn't change the past 6 years).
Switching back and forth between your clip and the real videos quickly shows the pitch difference at high RPMs.
Apart from the high pitch those sounds are perfect, can't wait to drive that new IndyCar!