In most cases, you can improve performance with a wheel & tire combo. The biggest thing people don't think about is the weight. My last car a Ford Fusion PHEV I went from the factory 18" wheel and tire combo Michelin Energy & factory wheels to the Quatrac Pro in a 245/40/19 and lightweight ACE wheels. The new wheel/tire combo weighed about 8lbs each less and it made a huge difference in handling. The new all-weather tires are low rolling resistance but not as low as the Michelin Energy however with the reduction in weight the car seemed to accelerate quicker and corner better. Also, I did not notice a difference in fuel economy.
True, all i’m suggesting is people do their homework.
I love ace alloys, and other mfr carbon fiber wheels. i could never afford the 10k-15k hit per set.
With EVs, range is drastically affected if you are not careful. the model Y performance takes a 35 mile hit on range of you opt for the 20” or 21” uber rims, as per tesla.
The MMe GT trim has a redesigned front fascia that has air dams to help compensate for the use of 20” rims, as per Ford interview at launch.
The standard and premium fascias look identical, so i don't think going from 18” to 19” would make too much difference, although tire width will.
In the end, to each driver, their own MMe! Cant wait to see the pics with your new rims!