This weekend saw my first proper use/enjoyment of the Z4, it regularly brings particularly goofy grins to the face.
I attended the waterless skid pan event on Saturday. Compared to my (heavier, less powerful, longer wheelbase) E34 M5 reference, the Z4 is much more spikey and harder to control, but also much easier to get the tail out and more satisfying when you do string the corners together. An exceedingly well-driven black Z4M took the fastest time of the day. It was pretty spectacular to witness how little throttle he was applying, his slides were significantly less lairy than my slides, but I was on a mission to punish the Vitour tyres which again proved to be very deserving. After memorizing the track layout (I feel I am getting a Wrong Route reputation

), I need to work on reducing the throttle inputs to have tidier laps.
I also had a bit of a close moment with the barrier in front of my insurance broker, but the less said about that, the better!
Thank you
@MR_Y for this pic:
On Sunday I joined the Z breakfast run to V8 roadhouse via satellite road. This was the first time I pushed the car on public roads, some limiters were reached, a lot of fun was had even though the pace was more sedate that some other runs I've been on - blame it on the roadster guys

I had a few pulls with an immaculate (and sorted) red Z4M and there was nothing in it, confirming the healthy status of my engine

I am loving the friendly community of Z4 and S54 owners, it says something about the car when the owners are generally so great!
A new issue was uncovered during the skidpan day, there is a hesitation/stumble when one blips the throttle, it makes it impossible to rev match and made it look like I had delayed reaction times at the start. I'm pretty sure it is a bad TPS which seems to be fairly common on these cars and it has not been changed in the last 80,000km, so probably due. Will dig around behind the couch again, see if I missed any pennies!