Android Used Car Dealer App

I run a small dealership that specialises in second-hand cars and I want a clean, reliable Android app that lets shoppers browse my stock and reach me in just a couple of taps.

Key functionality I need:
• Car Listings – each vehicle should show photos, price, basic specs and an “enquire” button.
• Customer Inquiry Form – when a user taps Enquire, a short form should capture their name, contact details and message and send it straight to my preferred email.
• Push Notifications – the app must send alerts when I add a new car or run a promotion.
• Social-media Login – Google and Facebook sign-in are required; I don’t need email/password registration.

The interface must be simple, quick to load and branded with my logo and colours. I’m happy with any modern Android framework (Kotlin, Flutter, React Native, etc.) as long as the final build is stable on current Android versions and can be uploaded to Google Play without extra rework.

Deliverables: the full Android source code, an installable APK for testing, and a brief guide that shows how I can add or edit listings on my own.