One owner found that downsizing the Ioniq 5 N’s wheels and tires improved highway efficiency by 12%.
https://insideevs.com/news/804268/ioniq-5n-wheels-improve-range/ (disabling your ad blocker required)
https://insideevs.com/news/804268/ioniq-5n-wheels-improve-range/ (disabling your ad blocker required)