Total cost of ownership comparisons between petrol, hybrid and electric vehicles are widely published, and widely misleading, because they average across driving patterns that vary enormously. A household with home charging and a short commute experiences electric ownership completely differently from one relying entirely on public charging. The comparison is only useful once broken into the categories that actually drive the difference.
Energy and fuel cost: the driver-specific variable
Electric vehicles are cheapest to run per mile when charged predominantly at home or via a workplace charger on off-peak rates; that advantage narrows substantially, and can disappear, for drivers who rely mainly on public fast charging, which is priced closer to, or above, the per-mile cost of petrol in many markets. Hybrids sit in between: they recapture energy that would otherwise be lost to braking and coasting, which produces real fuel savings in stop-start urban driving but far smaller gains on sustained motorway journeys, where a hybrid's electric motor contributes little.
The comparison only works with your own numbers
Before comparing running costs, establish your realistic access to home or workplace charging, your typical mix of urban versus motorway driving, and local electricity and fuel prices. National averages published in most comparisons assume a driving pattern that may not be yours.
Servicing and maintenance
Electric vehicles have fewer moving parts subject to wear — no engine oil, timing components or exhaust system — which generally reduces routine servicing costs over the ownership period. Hybrids carry both a combustion engine's maintenance needs and an additional electric drive system, though regenerative braking tends to extend brake pad and disc life relative to a purely petrol vehicle. Battery health monitoring and eventual battery replacement cost, where it falls outside a manufacturer's warranty period, is the largest maintenance uncertainty for both hybrids and electric vehicles, and warranty terms on the battery specifically are worth reading before purchase rather than assuming they match the vehicle's general warranty.
