It appears to me that you had more confidence in high-speed corners with the M4. Looking at the speed data, on higher-speed corners, even though you were approaching from a significantly higher speed, you braked less and maintained higher speeds through the corners, and of course accelerated faster shown with the slope of the curves.
Also, on the last hairpin (guessing here), you decelerated into it at nearly the same rate, but was able to get on the throttle earlier as well.
Not knowing the track or how a 370 drives, my educated guess would be that you felt more comfortable with the M4 at higher speeds. If true, it speaks well for the car, considering this is your first time out on track with it
