Which battle mode was added in Mario Kart 8 Deluxe?

Renegade Roundup was added in Mario Kart 8 Deluxe. It is a team-based battle mode in which one side plays as renegades trying to escape, while the opposing authorities use Piranha Plants to capture them.

Captured renegades are placed in suspended cages. Teammates can free them by driving over switches beneath the cages, creating a rescue objective that makes the mode different from ordinary item-based battles. The design is broadly inspired by the children’s game cops and robbers.

Mario Kart 8 Deluxe launched for Nintendo Switch in April 2017 as an enhanced version of the Wii U’s Mario Kart 8. Nintendo substantially rebuilt the battle experience, adding dedicated battle arenas and restoring several classic formats alongside Renegade Roundup.

The other listed choices are also real Mario Kart 8 Deluxe battle modes, which makes this question easy to misread. Coin Runners and Bob-omb Blast are included as well; Renegade Roundup is the distinctive mode added to the Deluxe version.