Audi TT vs Volkswagen ID.4

Running cost per km measures the expense of driving your EV per kilometer. Running Cost/Km = (Battery Capacity of EV * Per Unit Electricity Cost ) / Range on full charge.

The displacement of an engine is the total volume of all of the cylinders in the engine. Measured in cubic centimetres (cc)

ICE engines have one or more cylinders. More cylinders typically mean more smoothness and more power, but it also means more moving parts and less fuel efficiency.

Fast charging typically refers to direct current (DC) charging from an EV charge station, and is generally quicker than AC charging. Not all fast chargers are equal, though, and this depends on their rated output.

The number of intake and exhaust valves in each engine cylinder. More valves per cylinder means better engine breathing and better performance but it also adds to cost.

Indicates the level of pollutants the car's engine emits, showing compliance with environmental regulations.

The maximum number of people that can legally and comfortably sit in a car.

The total number of doors in the car, including the boot if it's considered a door. It affects access and convenience.