I reach 1877 hp, when fully tuned (no ballast, no weight reduction either, 719.09PP) Check, you're missing some part. Best time 3:47.947. Max speed 511 km/hThe Huracan with the Chiron swap has been my fastest so far, just now clearing it in 3:48.922, 40.008 ahead of the second place Chiron. Full tuning, which includes Ultra-High RPM Turbo, Racing Muffler, Racing Intercooler and weight reduction gets you to 1851hp at 713.89 PP with the SS tires, no ballast or power restriction needed. I just set the transmission top speed at 660 and I was in first place just before the 1km mark.