Complex sentence: On lap 176, the eighth caution was issued after Mears made contact with Almirola, who regained control of his car, but Mears went into the side of Ambrose.
Split into simpler sentences: On lap 176, the eighth caution was issued after Mears made contact with Almirola. Almirola managed to regain control of his car, but Mears went into the side of Ambrose.