I got a few laps at the end of the day once #Racewife had put 160km of track time on the FXX-K. Short report: Brakes: check. Slightly better than on the 599XX, which is to say, insane if you're used to street grip. Easy to feel ABS actuation and to keep the car on the limit of adhesion. Cornering: check. The FXXK is more neutral than the 458 Challenge; it doesn't like being trail-braked into low speed corners and prefers a bit of maintenance throttle starting midcorner. VERY communicative, you can always tell what the front tires are doing and the chassis is settled and comfortable. Corner exit is of course all about managing traction, but the car really puts down the power well. You can feel the aero effect in mid-speed corners on up. Motor: good god. Picture a 458 Challenge EVO, and then double it. Midrange is insane, top end is insane, sound is insane. I'm in love. One of the best things about the FXXK is its integration of electronics like side-slip control. The computer lets you get enough power to the rears to get them to take a slip angle exiting the corner, and eventually to step out, but it doesn't happen suddenly and it lets you explore throttle application on a >1000HP car without horrific consequences. As such it's a great driver confidence booster, and lets you learn how to apply the car's massive power without dying in the process. Overall the FXX-K is the friendliest track car I've ever driven. That shouldn't be the case for a 1039HP downforce car on slicks, but it is. Ferrari has done some black magic here.