Just a minor note.
3,000 RPM doesn't sound like 'roaring' to me.
I've had a car that idled at 2000 RPM.
And my last car before the PHEV used to redline at 7,000.
Others have commented before that some drivers are stressing about engine noise which is actually quite mild, it's only the comparison with the nearly silent electric drive that makes it seem loud.
Please note that the PHEV engine has ceramic coated bearings because it is designed for cold starts.