The 718 Cayman S sits above the base Cayman with a larger 2.5-liter turbocharged flat-four featuring variable-turbine-geometry boost. The mid-mounted engine produces 350 horsepower and 309 lb-ft of torque, driving the rear wheels through a standard six-speed manual or optional seven-speed PDK dual-clutch transmission. Porsche quotes a 0-60 mph time of 4.2 seconds with PDK (4.0 seconds with the Sport Chrono Package) and a 177-mph top track speed. The 718 line was discontinued after the 2025 model year.
Specifications by source
Each figure carries an evidence mark and a text label; expand a value for its full provenance — citation, verification, test conditions, and any alternate figures.
A. Acceleration
0–100 km/h4.40 sIndependent testWikipedia+–Show full source detail and alternate values
Official specification · Accessed 21 Jun 2026 · Specifications table – Cayman GT4 RS / Spyder RS, 0-100 km/h
Porsche factory claim with PDK, standard (4.2 s with PDK and Sport Chrono). Read via the Wikipedia 982 specifications table, which transcribes Porsche's figures. [Figure is Porsche's official spec, read via en.wikipedia.org.]
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0–100 mph9.30 sIndependent testCar and Driver+–Show full source detail and alternate values
Official specification · Accessed 21 Jun 2026 · Technical data - Acceleration 0-200 km/h
Porsche factory claim, 0-200 km/h for the 718 Cayman S PDK. The manual is listed at 15.2 s in the same official technical-data table.
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0–60 mphiMethodology noteRollout (1ft) handling differs between testers and manufacturers.4.20 sManufacturer claimPorsche+–Show full source detail and alternate values
Official specification · Accessed 21 Jun 2026 · Performance figures – Top track speed
Porsche factory figure with PDK (4.4 s with the manual gearbox; 4.0 s with PDK and the Sport Chrono Package). No independently instrumented test of the 2025 Cayman S was located, so the manufacturer claim is preferred.
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Quarter-mile elapsed time12.60 sManufacturer claimPorsche+–Show full source detail and alternate values
VerifiedHigh confidence
Originally reported as 12.6 s; stored canonically.
Official specification · Accessed 21 Jun 2026 · Performance figures – Top track speed
Porsche factory claim, PDK (manual 12.8 s; 12.4 s with Sport+ and PDK), for the 718 Cayman S (2.5L turbo flat-four, 350 hp), from the 718 Cayman US press kit; the column is explicitly labelled 350 hp. Powertrain unchanged through the 2025 model year.
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B. Braking
70–0 mph braking distance43.9 mIndependent testCar and Driver+–Show full source detail and alternate values
VerifiedMedium confidence
Originally reported as 144 ft; stored canonically.
Instrumented road test · Accessed 21 Jun 2026 · Comparison test data - Porsche 718 Cayman S, 0-100 mph
Car and Driver instrumented 70–0 mph braking for the 718 Cayman S, from a comparison test. The Cayman S (982 generation, 2.5L turbo flat-four — mechanically the same as the 2025 718 Cayman S) is column 2 at 144 ft; the Audi TT RS in column 1 measured 140 ft. Tested as a 2017 model year; cited via Wayback Machine snapshot.
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C. Dimensions
Height1295 mmManufacturer claimPorsche+–Show full source detail and alternate values
Official specification · Accessed 21 Jun 2026 · Performance figures – Top track speed
Four cylinders, boxer (flat) configuration.
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Engine displacement2.5 LManufacturer claimPorsche+–Show full source detail and alternate values
VerifiedHigh confidence
E. Fuel Economy
Estimated range (city)iMethodology noteEstimated from tank capacity and quoted city economy — not an instrumented range.517 kmCalculated—+–Show full source detail and alternate values
Verified
Originally reported as 516.974745 km; stored canonically.
Calculated from Fuel tank capacity · Fuel economy (city).
Estimated range (combined)iMethodology noteEstimated from tank capacity and quoted combined economy — not an instrumented range.599 kmCalculated—+–Show full source detail and alternate values
Verified
Originally reported as 598.602338 km; stored canonically.
Calculated from Fuel tank capacity · Fuel economy (combined).
Estimated range (highway)
F. Performance
Lateral accelerationiMethodology noteSkidpad radius and surface affect results.1.04 gIndependent testCar and Driver+–Show full source detail and alternate values
Instrumented road test · Accessed 21 Jun 2026 · Comparison test data - Porsche 718 Cayman S, 0-100 mph
Car and Driver comparison-test data lists the Porsche 718 Cayman S in the second column at 1.04 g on the 300-ft skidpad. Same 982 Cayman S trim, older model year.
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Power-to-weight ratio
G. Practicality
Seats2HomologationUS EPA+–Show full source detail and alternate values
Official specification · Accessed 21 Jun 2026 · Performance figures – Top track speed
Porsche DIN unladen weight with PDK 3,054 lb (2,988 lb with the manual gearbox). No independently published tested curb weight was located for the 2025 Cayman S.
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Sources
Backed by 5 source documents. Expand any value for its full provenance — citation, verification, test conditions, and alternate figures.
Contributor mode. Expand any value above to suggest a correction or add another source; the metrics below have no published value yet. Every submission carries a source and is editor-verified before it appears.
Official specification · Accessed 21 Jun 2026 · Performance figures – Top track speed
Six-speed manual standard; seven-speed PDK dual-clutch optional. Standard gearbox recorded here.
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iMethodology noteEstimated from tank capacity and quoted highway economy — not an instrumented range.
680 km
Calculated
—
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Verified
Originally reported as 680.229956 km; stored canonically.
Calculated from Fuel tank capacity · Fuel economy (highway).
Fuel economy (city)iMethodology noteLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.12.4 L/100kmHomologationUS EPA+–Show full source detail and alternate values
VerifiedHigh confidence
Originally reported as 19 mpg; stored canonically.
Government record · Accessed 21 Jun 2026 · Vehicle class – Two Seaters
EPA city rating for the 2025 718 Cayman S (2.5 L, AM-S7 PDK, RWD).
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Fuel economy (combined)iMethodology noteLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.10.7 L/100kmHomologationUS EPA+–Show full source detail and alternate values
VerifiedHigh confidence
Originally reported as 22 mpg; stored canonically.
Government record · Accessed 21 Jun 2026 · Vehicle class – Two Seaters
EPA combined rating for the 2025 718 Cayman S (2.5 L, AM-S7 PDK, RWD).
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Fuel economy (highway)iMethodology noteLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.9.4 L/100kmHomologationUS EPA+–Show full source detail and alternate values
VerifiedHigh confidence
Originally reported as 25 mpg; stored canonically.
Official specification · Accessed 21 Jun 2026 · Performance figures – Top track speed
Top track speed, identical for manual and PDK per the Porsche US technical data table (177/177 mph). Corroborated by the Porsche 982 model summary (285 km/h).
