Google sheets automation

I need an expert in Google Sheets to create a comprehensive inventory management system for tracking used cars. The system should include functionalities for vehicle tracking, sales management, and reporting and analytics.

Key Requirements:
- Design a user-friendly Google Sheets system for tracking used cars
- Implement functionalities for sales management and reporting/analytics
- Ensure the system is secure and only accessible by the Admin and verified users

Ideal Skills:
- Proficient in Google Sheets with a track record of creating complex spreadsheets
- Experience in inventory management systems, particularly for vehicles
- Strong understanding of sales management and analytics
- Excellent attention to detail and ability to create user-friendly interfaces