Use the same distance and ownership period for every vehicle. Purchase price, energy, insurance, maintenance and eventual resale assumptions belong in separate lines.
Make the energy calculation transparent
For a purely illustrative calculation, a car using 16 kWh per 100 km over 12,000 km would need 1,920 kWh at the chosen measurement boundary. At an invented price of 0.25 currency units per kWh, that equals 480 currency units. These numbers are arithmetic examples, not a forecast for any model or country.
Be explicit about the boundary. A dashboard consumption figure and the electricity shown on a charging bill may describe different things. For a household budget, use the energy you pay for and the actual tariff; keep parking, session fees and subscriptions in their own entries.
Service still needs a plan
The Department of Energy notes that all-electric vehicles typically have fewer routine powertrain maintenance requirements, while hybrids retain engine-related maintenance. Its guidance also discusses tires and other systems that still need attention. This is a general distinction, not a maintenance quote for a specific car.
Compare the full ownership scenario
Write down the annual distance, expected years of use, charging locations and service provider. Request the local service schedule and warranty wording. Keep confirmed prices separate from assumptions so a later quote can be substituted easily.
For resale value, use scenarios rather than a single confident prediction. A low, middle and high estimate will show how much that unknown changes your comparison. The purpose is to expose the inputs that matter, not to manufacture a precise lifetime cost from incomplete data.
Sources & context
Manufacturer specifications and announcements are attributed as such. This article is desk research, not a road test. Examples explain general principles; they are not performance claims about a named model.
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