Yes, the hub is identical
Same 5x130 PCD and same 71.5 mm centre bore: wheels from Porsche 911 991 Turbo S bolt on and centre on Bentley Mulsanne without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from Porsche 911 991 Turbo S is compared with the one from Bentley Mulsanne of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.
- ✓
≈7.5Jx20 ET51 · 245/35R20 — Fits like the original
Compared with the original ≈8.5Jx20 ET50 on Bentley Mulsanne: shock absorber side −11.7 mm, wheel arch side −13.7 mm, tyre diameter −9 % : fit it with the original tyre size of Bentley Mulsanne (265/45R20), not that of Porsche 911 991 Turbo S.
Comparison for guidance only (estimated width). Check in detail
Before fitting the wheels
An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Bentley Mulsanne (-), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.
And the other way round: wheels from Bentley Mulsanne on Porsche 911 991 Turbo S?