Selecting a Farm Buggy requires balancing engine displacement (cc), payload capacity, and terrain adaptability. For light chores, a 400cc to 500cc engine is sufficient, but for heavy hauling or hilly terrain, prioritize 800cc to 1000cc models. Ensure the vehicle features 4WD (Four-Wheel Drive) with a locking differential to handle mud and uneven fields. Additionally, verify the towing capacity meets your trailer requirements, typically looking for a minimum of 1,500 lbs for professional farming use.