Complex sentence: The Mercedes-AMG GT (C190) is a 2-door, 2-seat sports car produced by Mercedes-AMG since 2014, it is the second sports car developed entirely in-house by Mercedes-AMG.
Split into simpler sentences: The Mercedes-AMG GT (C190) is a 2-door, 2-seat sports car produced by Mercedes-AMG since 2014. It is the second sports car developed entirely in-house by Mercedes-AMG.