2015 Porsche 911 Carrera GTS: The Sweetest 911 Package? Published on November 20, 2014 in First Drives by Benjamin Hunting Photo: Benjamin Hunting The 2015 model’s engine output is a mere five horses down on the last-gen GT3, and it also happens to be the mightiest rear-wheel drive coupe Porsche offers with a manual transmission lurking on the order sheet.