First day of driving impressions;
1-The car is obviously way more powerful and it feels amazing to drive.
2- I got the ZTK package and the brakes are way more softer and require more pressure to stop than my Z07 equipped GS. It will take me some adjustment to drive this. My Z07 brakes were very sensitive and you had to be very soft on the pedal, otherwise it stopped on a dime. I though they had the same brakes but apparently something is very different.
3- There is not tire chatter at all on the ZTK. GS Z07 had a huge tire chatter on turns (same exact tires with ZR1) but ZTK doesn’t have any. Z07 tires were at 30-35 pressure and ZTK tires came at 35-38. Might be because of that or the tire compounds might have changed a bit too...
4- Standard exhaust at track setting sounds perfect. It is very loud and has a lot of craking and poping sound on downshifts, slowing down.

Congrats again on a gorgeous car.

Re. Brakes, did you burnish the ZR1 brakes? If not, follow the directions in the owner’s manual and you should see a notable difference (improvement).

Thank you, I read it on the manual last night. I will try to find a safe road and try to apply it.

Not sure if your manual states explicitly to burnish after break in...something to consider.

Saved me an engine, tnx.