2014-2016 991.1 Porsche 911 Targa 4S

Overview

The 2014-2016 991 Targa 4S extended the motorized glass roof system to the higher-performance all-wheel-drive variant, combining 400-horsepower from the 3.8-liter naturally aspirated engine with the structural integrity and flexible open-air operation that the Targa configuration provided. The larger displacement engine and revised suspension calibration for the Carrera 4S positioning created a premium variant within the Targa lineup. The motorized glass panel, integrated into the fixed roll-bar frame, allowed retraction without compromising structural rigidity. The three-year production timeline reflected manufacturing lead times and market development requirements.

The Targa 4S designation indicated the combination of motorized glass roof with higher-performance all-wheel-drive specification, appealing to buyers seeking maximum performance combined with structural integrity and flexible open-air capability. This variant represented the apex of naturally aspirated all-wheel-drive performance with Targa configuration, offering comprehensive functionality without turbocharged complexity. The widened bodywork accommodated larger wheels and tires while all-wheel-drive provided winter traction.

Engineering & Development

The 991 Targa 4S motorized glass roof mechanism employed identical electric actuation systems as Targa 4 variants, with no modifications required for the higher power output. The fixed roll-bar structure remained unchanged, providing equivalent structural rigidity across all Targa configurations. The suspension geometry incorporated the revised calibration and bushing stiffness specific to the 3.8-liter all-wheel-drive specification, optimized for the elevated power output and widened track width.

The all-wheel-drive system distributed torque through viscous center differential with electronic limited-slip rear differential providing enhanced traction. The widened bodywork with 37-millimeter track width increases per corner provided mechanical leverage for sustained cornering forces. Brake systems employed four-piston front calipers and dual-piston rear units proportional to elevated power output. Water-cooled cooling system capacity received increases through improved radiator design.

Market Variants

The 991 Targa 4S appeared with updated exterior styling matching the 991 generation. The widened bodywork with integrated aerodynamic elements came standard. The glass roof panel came tinted as standard. Interior specifications included enhanced leather trim selections in multiple colors and textures. Transmission options included seven-speed manual or seven-speed Tiptronic automatic.

Wheel selections ranged from 18-inch baseline designs through optional 19-inch and 20-inch variants. Xenon headlights appeared standard. Electronic brake distribution, traction control, and tire pressure monitoring appeared standard. Audio system options expanded substantially, accommodating diverse customer preferences.

Significance

The 991 Targa 4S validated that motorized glass roof systems remained compatible with higher-displacement naturally aspirated all-wheel-drive engines, combining responsive power delivery with structural integrity and open-air flexibility. The variant's three-year production window established the Targa 4S as a permanent fixture rather than limited offering. The variant demonstrated that premium positioning remained viable within the Targa lineup despite manufacturing complexity.

The 991 Targa 4S captured a transitional moment when naturally aspirated power remained the dominant specification for premium all-wheel-drive variants. The variant's popularity and commercial success encouraged Porsche to continue Targa variants through subsequent generations as permanent product tier components, validating the unique market positioning between hardtop and cabriolet configurations.