The function response did not return relevant information regarding the specific car air conditioning products from Jayair, Denso, Delphi, DuPont, Sanden, Behr-Hella, RedDOT, Maradyne, Parker, Spal, or Vintage Air.

To find available car air conditioners from these brands, I recommend visiting the official websites or authorized retailers in Australia. Here are some general steps you can take:

1. Jayair: Check their official website or automotive parts distributors for their range of air conditioning products.

2. Denso: Visit the Denso Australia website to browse their automotive air conditioning parts and systems.

3. Delphi: Delphi's official site showcases their air conditioning components, designed particularly for vehicles.

4. DuPont: Look for DuPont's automotive offerings related to cooling systems, as they may provide refrigerants or components.

5. Sanden: Check Sanden's website for their automotive air conditioning compressor products.

6. Behr-Hella: Hella provides a variety of thermal management products for vehicles, which may include air conditioning units.

7. RedDOT: Search for RedDOT’s offerings, generally known for heavy-duty and specialty vehicle air conditioning systems.

8. Maradyne: Review Maradyne's range of vehicle cooling fans and air conditioning products on their website.

9. Parker: Explore Parker's automotive products, focusing on their fluid power and air conditioning solutions.

10. Spal: Check Spal’s web catalog for their automotive fans and air conditioning systems.

11. Vintage Air: Vintage Air specializes in classic car air conditioning systems, which can be explored on their site.

If you have a particular vehicle model or requirements in mind, this information can further refine your search for the best suitable air conditioning option.