Revealing mistake: When the Jaguar crosses the pavement to go down the alley you can see a plank of wood in the gutter so the Jaguar can mount the kerb more easily.
Sweet Smell of Succession - S3-E8
Revealing mistake: After the car chase, when the Jaguar crashes and the driver gets out you can see that the Jag's drivers seat is fitted with a motor racing harness instead of the normal road seat belt for the stunt.
Sweet Smell of Succession - S3-E8
Revealing mistake: When Tarley is hitting Arlene in the face you can see that his hand passes in front of Arlene's face, not actually hitting her, and when he hits her the third time, Arlene reacts too soon and moves her head before she is hit.
Answer: Scripted.