As of my last update in January 2022, while there may not be a specifically renowned luxury taxi in Haridwar, there are various avenues you can explore:

1. **Local Taxi Services**: Contact local taxi operators in Haridwar to inquire if they offer luxury or premium vehicles for hire. While they might not specialize in luxury services, they could have high-end vehicles available upon request.

2. **App-based Services**: Companies like Uber and Ola may provide higher-end vehicle options in Haridwar, especially if they operate in the area. These services often offer luxury car choices for customers willing to pay extra.

3. **Travel Agencies**: Some travel agencies might include luxury taxi services as part of their tour packages or as standalone offerings. Check with agencies in Haridwar to see if they provide such services.

4. **Hotels and Resorts**: Luxury hotels and resorts in Haridwar might have their own fleets of luxury vehicles or partnerships with local luxury taxi services for guest transportation.

5. **Chauffeur Services**: Seek out chauffeur services in Haridwar specializing in luxury transportation. These services typically offer a selection of high-end vehicles with professional drivers.

Before booking, it's essential to research and review customer feedback to ensure the reliability and quality of the service you choose. Additionally, inquire about rates, availability, and any specific requirements you may have for your journey.