If you’ve decided on a 2021 Porsche 718 Cayman with the 4.0-liter flat-six engine, you might be wondering whether to choose the GTS 4.0 or the GT4. Despite sharing the same engine, these models have significant differences beyond just the GT4’s fixed rear wing. Here’s a detailed comparison.
Engine and performance
Both models feature a 4.0-liter flat-six engine, but the GTS 4.0 produces 394 hp, while the GT4 delivers 414 hp due to a higher redline. The GTS 4.0 redlines at 7,800 rpm, while the GT4 reaches up to 8,000 rpm, providing an additional 20 hp. The GT4’s peak power is also achieved at 7,600 rpm compared to the GTS 4.0’s 7,000 rpm. Torque remains the same between both models with the manual gearbox but is delivered over a wider band in the GT4.
Acceleration and top speed
The 718 Cayman GTS 4.0 accelerates from 0-60 mph in 4.3 seconds with the manual transmission or 3.8 seconds with the PDK automatic. The GT4 is slightly faster, achieving 0-60 mph in 4.2 seconds with the manual and 3.7 seconds with the PDK. The GT4 also boasts a higher top speed, reaching 189 mph with the manual and 188 mph with the PDK, compared to the GTS 4.0’s top speeds of 182 mph and 179 mph, respectively.
Dimensions and weight
The Cayman GT4 is slightly longer (175.4 inches) and lower (50.0 inches) than the GTS 4.0, and it weighs about 42 pounds more. Its wheelbase is also 0.4 inches longer. The GT4’s aerodynamic features are more track-focused, with larger air intakes, a front lip spoiler, side air intakes with blades, a unique rear diffuser, and additional underbody panels.
Tires and wheels
The GT4’s rear wheels are 0.5 inches wider and come with Michelin Pilot Sport Cup 2 tires (245/35ZR20 front and 295/30/ZR20 rear), while the GTS 4.0 uses slightly narrower tires with either Michelin Pilot Sport 4 or Pirelli P Zero rubber (235/35ZR20 front and 265/35ZR20 rear).
Suspension and brakes
The GT4 features a more sophisticated suspension setup developed by Porsche Motorsport, including adjustable toe, camber, and anti-roll bars, as well as dynamic gearbox mounts and helper springs on the rear axle. It’s lowered by 30 mm overall, offering a sportier driving experience compared to the GTS 4.0, which is lowered by 20 mm. The GT4’s brakes are also larger, with 380 mm discs all around versus the GTS 4.0’s 350 mm front and 330 mm rear discs. A unique feature of the GT4 is the ability to turn off electronic stability control (ESC) while keeping traction control active, which isn’t available on the GTS 4.0.
Summary
The 2021 Porsche 718 Cayman GTS 4.0 is more street-oriented, while the Cayman GT4 is designed for track enthusiasts. Both offer exceptional driving experiences with impressive handling, precise transmissions, and a powerful engine. No matter which you choose, you’ll enjoy an engaging and exhilarating driving experience.