To obtain a title for a car abandoned at a car mechanic in Georgia, while specifically citing the relevant sections of the Official Code of Georgia Annotated (OCGA), here are the steps involved:

1. Identify the Abandoned Vehicle:

- Under OCGA § 40-11-1, an abandoned motor vehicle includes one left on private property for at least 30 days without anyone paying for storage or towing charges after lawful towing.

2. Notify Owners and Lienholders:

- OCGA § 40-11-2 requires that within 72 hours of removing an abandoned vehicle, the person removing it must obtain owner and lienholder information from local law enforcement and notify these parties. If the owner or lienholder does not respond within 30 days or make arrangements to pay or claim the vehicle, f

3. Law Enforcement Involvement:

- OCGA § 40-11-3 authorizes peace officers to remove vehicles from public property, but also covers the notification process which mechanics must follow when dealing with vehicles on private property like a repair shop. Law enforcement can assist in identifying the vehicle's ownership.

4. Mechanic’s Lien:

- OCGA § 40-11-4 allows a repair facility to place a lien on a vehicle for unpaid repairs or storage fees. However, to enforce this lien and proceed with selling the vehicle, you must follow the legal process.

5. Filing for Court Order:

- OCGA § 40-11-5 outlines the procedure for filing for a court order to foreclose on the lien: - File an affidavit in the county where the vehicle is located, stating the vehicle has been abandoned, attempts to notify owners/lienholders, and the amount due. - The court will issue a notice for the owner to appear, and if there's no response or payment, a hearing can be requested to authorize the sale.

6. Public Sale:

- OCGA § 40-11-6 details that after the court order, the vehicle must be sold at a public sale, with advertisement as prescribed by law. The sale should be advertised in a newspaper of general circulation for two consecutive weeks.

7. Title Application Post-Sale:

- Once sold, OCGA § 40-11-7 allows the purchaser to apply for a title. You would need:
- A completed Form MV-1 (Title/Tag Application).
- A certified copy of the court order.
- Proof of sale from the public auction.

8. Disposal of Proceeds:

- OCGA § 40-11-8 mandates that any proceeds from the sale exceeding the costs and charges associated with the vehicle's storage, towing, and sale be held for the owner or remitted as per state law if not claimed within a certain period.

Summary of Actions:
- Notify owners and lienholders as per OCGA § 40-11-2.
- File for a court order under OCGA § 40-11-5 if there's no response.
- Conduct a public sale as required by OCGA § 40-11-6.
- Apply for the title with the documents from the sale and court order per OCGA § 40-11-7.

Remember, each step must be carefully documented and followed to legally transfer ownership. If there's any doubt about the process or specific requirements, consulting with a legal professional or the Georgia Department of Revenue for the most current procedures is recommended. Also, ensure compliance with local ordinances which might have additional or differing requirements.