1) The document describes a decentralized application (dApp) that aims to securely store vehicle details on the blockchain to address issues like tampering of registration details and creation of fake identity cards. 2) Current vehicle data storage in centralized servers is hackable and vulnerable, while a blockchain provides a permanent, decentralized, and secure way to store and retrieve vehicle details. 3) The dApp pushes vehicle details like VIN, model, plate number, owner onto the Ethereum blockchain using smart contracts, and retrieves the data to a dashboard using tools like web3.js and Metamask. This resolves issues around trusting third parties and identifies smuggled vehicles.