I lived in Germany for about 4 years. Regardless of how fast they generally drive, an important selling point is that the car ( any car) can reach 100 mph. Not all fast cars are gas guzzlers. Most folks buy Diesels there and these cars tend to be ones that drive fast in the left lane for extended period of time. When living there, I had a Passat TDI with a 90 hp/200ft-lb. Diesel engine that had a max speed of 125 mph. I did cruise at that speed for a few hours at times. On local roads it got about 50-60 mpg but, of course, a lot less at high speeds ( 20 mpg?).
I have seen 4 cyl turbo Diesel M-B Sprinters going at 100 mph!
Most E class M-B, 5 Series BMWs and Audi A6 models there have small 4 cyl turbo Diesels. Acceleration is not that important there as they have long on ramps to the Autobahn and the fact that the country is so developed, fast acceleration cannot be used locally . Yes, they drive fast on the Autobahn in those larger cars with small engines. The big engines are primarily for the US and a few other markets.
The point is that the small engines are used in other markets. A small battery and/or lower powered motor for the ID.4 is unlikely for the US. If so, it won't sell well.
I am sure Europeans use their EVs mostly around town and on "B" roads and save their IC powered car for the highway drives.