The total driving distance is approximately 850-880 km. This route requires navigating international borders (Vietnam-Cambodia at Moc Bai/Bavet and Cambodia-Thailand at Poipet/Aranyaprathet). An International Driving Permit (IDP) is essential, and travelers must be aware of vehicle import regulations, insurance requirements, and visa rules for all countries traversed. Fuel costs are estimates and tolls may apply in each country. Private car services with a driver (e.g., Glassflower, Sima Car for segments) are also available, offering more comfort but at a higher cost (e.g., USD 250/car for HCMC to Phnom Penh, and USD 250-370/car for Phnom Penh to Bangkok).