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Automotive glossary

Understand the concepts used in our guides and calculators. Documented definitions, examples, and related reading.

5 concepts

Energy and charging

DC Charging

Charging in which external equipment supplies direct current to the vehicle’s battery system.

Reviewed 05.10.2026
Buying and costs

Depreciation

Depreciation is the loss in a vehicle’s value over time and through use. It represents the difference between its initial value and the value it retains at a later date.

Reviewed 05.10.2026
Technology and mechanics

Differential

A transmission mechanism that allows the wheels on a driven axle to rotate at different speeds.

Reviewed 05.10.2026
Technology and mechanics

Direct injection

A system in which fuel is introduced directly into the engine’s combustion chamber.

Reviewed 05.10.2026
Nautical

Draft

A boat’s draft is the vertical distance between the waterline and the lowest submerged reference point of the boat, according to the definition being used.

Reviewed 05.10.2026

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