As Luca adjusts the radio dial, you can see the speedometer needle is at 0, but he is driving down the street.
You can see the shadows of the cameras on the hood of the 1961 Plymouth during the night highway driving scenes.
Luca eliminated Ganz and his partners to take over the Riverdown sports book. However, Johnny Faci told Luca before that the sports book was run from Ganz head and the coded book which apparently Luca never got. So It wasn't really explained how they 'took it over' and made it successful.