I'm also super excited to have decimated my previous personal best at Gingerman Raceway today! I ran with an "all-Miata" track day, but there were a few corrupters such as a couple of "long-nose Miata" [S2000], Poorsche [BRZ], and "5/4ths scale Miata coupe that already has a V8 swap" [my SS 1LE].
Last year I struggled to break 1:40.1. The days I was there the track just never seemed to have any grip. Today however it all went to plan. I not only racked up a series of 1:39's, I also dipped into the 1:38's for a handful of laps, including a best of 1:38.23. A huge improvement with no car change. I've been driving Gingerman for something like 14 years and I can't say I all of a sudden found time from a new line, it just seemed the track was finally dancing with good grip, plus the air temps were cool so the engine wasn't pulling ECT-based timing like a normal pleasant day. The cool air temps meant the Supercar 3R's needed a full 2 laps to start to really lean on them, they felt like icicles until then. Even then I'm still not happy with how that tire feels; it's very loose even when it's up to temp and gripping, it requires a more open and quick steering style and as such they're nearly impossible to be inch-perfect since they're moving around so much.
In any case, here in my fast lap! At lap time 45 seconds a bird nearly dive-bombs into my windshield but diverted at the last moment. Whew! I also wonder how many more tenths I could've got if it weren't for the two point-bys in the second half of the lap. Finally, this is running the car in Track Off/Off mode.