In the Mario Kart series, which game introduced the "Shield Drifting" mechanic?

The answer is Mario Kart Arcade GP DX because it was the first game in the Mario Kart series to introduce the shield drifting mechanic. This game allowed players to activate a temporary shield by drifting, which could protect them from incoming attacks or obstacles. The shield drifting mechanic added a new layer of strategy and skill to the gameplay, making it a unique feature in the series.