您的公司将为某个新车型投放一个广告系列。他们希望制作一种沉浸式的 3D 广告，并在其中使用现有的 3D 汽车模型。 您应该使用哪种 Display & Video 360 广告格式？

Swirl ads are the correct choice because they are an immersive 3D ad format designed for mobile web and apps, allowing users to interact with 3D objects, such as a car model, by rotating, zooming, and expanding them. This directly fulfills the requirement for an immersive 3D ad using existing 3D models. Native ads are designed to blend seamlessly with content but don't inherently support 3D interactivity. Flipbook ads create an animated sequence from a series of images, not a true interactive 3D experience. Parallax ads create a 2D depth effect by moving background and foreground elements at different speeds, which is not a 3D interactive format.