Bjørn Nyland with two other EV owners conducted tests of the world's most efficient EV - theHyundai IONIQ Electric, with two Teslas - the Model S 70D and Model X P90DL.

The result of the encounter was easy to predict, as the IONIQ simply needs least energy to move.

However, the difference to Model S are not so big at higher speeds.  Bjørn discovers the Models S uses just 13-14% more energy at 120 km/h (75 mph).

At lower speeds the differences are more in-line with the weights splits.

The  heavy Tesla Model X (2,600 kg) needs 50 to 68% more energy, depending on speed and the test cycle.

Consumption test on Ioniq, Model S and X

We all know that Hyundai Ioniq is the most efficient EV. But how efficient is a Model S 70D facelift? It was actually pretty close.

Consumption test on Hyundai IONIQ Electric, Tesla Model S and X Tesla (Bjørn Nyland)

Consumption test on Hyundai IONIQ Electric, Tesla Model S and X Tesla (Bjørn Nyland)