Watch Guy Mangiamele, Director of AMCI Testing, talk through their performance evaluation of the Lexus GS F and RC F vs the BMW M5 and M4.

About AMCI: AMCI Testing is the global leader in unbiased product validation testing.

360˙ Video: Explore by using your mouse or the WASD keys to move around when viewing in Chrome. (May not be supported on other browsers.)

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