What is the Collective noun of luxury car?

There isn't a single, widely accepted collective noun for luxury cars. However, here are a few options that work well, depending on the context:

Formal:

* Fleet: This is a good choice if you're talking about a group of luxury cars owned by a company or organization.

* Convoy: This suggests a group of luxury cars travelling together, perhaps for a special event.

Informal:

* Stable: This is a playful option, implying a collection of high-end cars, like a stable of racehorses.

* Gallery: This evokes the idea of a collection of beautiful, prestigious cars, like works of art.

* Menagerie: This is a humorous option, suggesting a collection of luxurious, diverse cars.

Creative:

* Opulence: This emphasizes the richness and extravagance of the cars.

* Panoply: This suggests a wide and impressive array of luxury cars.

Ultimately, the best collective noun to use will depend on the specific context and the desired tone.