Historical context for the GTS line: originally intended as a rear-wheel-drive widebody with power bump (a unique spec — even the GT3 of the time was narrow-body). Porsche added the Carrera 4 GTS option hastily after cold-weather northern dealers complained they couldn't sell RWD-only. …
GTS positioning — original RWD widebody, then C4 added under dealer pressure
Porsche 911 (991) · factory-spec