Miami,
The F1 body does have a lot of front down force, but seemed to lack in rear grip on hi-speed sweeper sections.
My personal experience with the Kyosho Ferrari & ProtoForm PF8 GT bodies is a much more balanced feel on the track.
If you take apart both RTR engines you’ll see several differences between them, starting with 3 vs. 5 ports and more. It’s a long race season, it will be interesting to see how things develop.