Data sources
Fuel and electricity efficiency autofill uses the Korea Energy Agency 'Vehicle label fuel economy' dataset (Korean Public Data Portal, 2026-04-24 edition, unrestricted licence). It fills only combined efficiency for about 3,900 cars, vans and trucks sold in Korea. Motorcycles, hydrogen vehicles, taxes, insurance and maintenance costs are not filled automatically. Label figures come from test conditions and may differ from real-world driving, so check and edit them. Enter all other values yourself.