Here's a first stab at a video showing their relative accelerations.
If you can't read the GTech meter I got 4.1ish to 60 in the X6M and 6.0 in the GTS. I'll clean this messy video up tomorrow. I tacked my GTR on the back and it's awful because the launch knocked the camera out of focus. It did a 3.46 second 0-60.
Note: I changed the video and dropped the GTS
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