AutoSpecData

Porsche 718 Dimensions & Size

How much cargo space and room does a 2025 Porsche 718 really have?

The 2026 Porsche 718 measures 172.4 in long, 70.9 in wide, 50.8 in tall, on a 97.6 in wheelbase, with a curb weight of about 3,031 lbs.

Looking for weight? See the Porsche 718 curb weight page — this page covers length, width, height and wheelbase.

Latest model year (2025):

The Porsche 718 measures 172.4 in long, 70.9 in wide and 50.8 in tall, on a 97.6 in wheelbase, weighing about 3,031 lbs.

VerifiedNHTSA Canadian Vehicle Specifications · Verified September 18, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb Weight

Porsche 718 Dimensions — All Years

YearBody / VariantLengthWidthHeightWheelbaseCurb Weight
2026Config 1 of 5718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2026Config 2 of 5718 CAYMAN GT4 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,197 lbs
2026Config 3 of 5718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2026Config 4 of 5718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2026Config 5 of 5718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2025Config 1 of 5718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2025Config 2 of 5718 CAYMAN GT4 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,197 lbs
2025Config 3 of 5718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2025Config 4 of 5718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2025Config 5 of 5718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2024Config 1 of 5718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2024Config 2 of 5718 CAYMAN GT4 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,197 lbs
2024Config 3 of 5718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2024Config 4 of 5718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2024Config 5 of 5718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2023Config 1 of 5718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2023Config 2 of 5718 CAYMAN GT4 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,197 lbs
2023Config 3 of 5718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2023Config 4 of 5718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2023Config 5 of 5718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2022Config 1 of 5718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2022Config 2 of 5718 CAYMAN GT4 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,197 lbs
2022Config 3 of 5718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2022Config 4 of 5718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2022Config 5 of 5718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2021Config 1 of 5718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2021Config 2 of 5718 CAYMAN GT4 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,197 lbs
2021Config 3 of 5718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2021Config 4 of 5718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2021Config 5 of 5718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2020Config 1 of 4718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2020Config 2 of 4718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2020Config 3 of 4718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2020Config 4 of 4718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2019Config 1 of 4718 CAYMAN GTS 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in3,031 lbs
2019Config 2 of 4718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2019Config 3 of 4718 BOXSTER GTS 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in3,031 lbs
2019Config 4 of 4718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2018Config 1 of 2718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2018Config 2 of 2718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2017Config 1 of 2718 CAYMAN BASE/S 2DR COUPE RWD172.4 in70.9 in50.8 in97.6 in2,943 lbs
2017Config 2 of 2718 BOXSTER BASE/S 2DR CONVERTIBLE172.4 in70.9 in50.4 in97.6 in2,943 lbs
2016718 BOXSTER BASE/S 2DR CONVERTIBLE172 in70.9 in50.4 in97.6 in2,943 lbs

Dimensions sourced from the NHTSA Canadian Vehicle Specifications database. Figures are measured per body style and can vary slightly by trim, wheel package, and suspension.

Porsche 718 data analysis

How Porsche 718 overall length varies

Across 43 configurations recorded for the 2016 through 2026 Porsche 718, overall length runs from 172 inches to 172 inches. The strongest figure belongs to the 2017 Porsche 718 (718 BOXSTER BASE/S 2DR CONVERTIBLE) at 172 inches, and the weakest to the 2016 car (718 BOXSTER BASE/S 2DR CONVERTIBLE) at 172 inches — a spread of 0%. The narrow spread means any year of the Porsche 718 in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2026

Average overall length for the 2026 Porsche 718 is 172 inches, against 172 inches for the 2025 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Porsche 718 data

This page lists every 2016 through 2026 Porsche 718 record we hold for this measurement — 43 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Porsche 718 numbers

The 2016 through 2026 Porsche 718 entries here cover the variants 718 CAYMAN GTS 2DR COUPE RWD, 718 CAYMAN GT4 2DR COUPE RWD, 718 CAYMAN BASE/S 2DR COUPE RWD, 718 BOXSTER GTS 2DR CONVERTIBLE and 718 BOXSTER BASE/S 2DR CONVERTIBLE. 2026 is the busiest model year in the record with 5 separate measured configurations, which is why a single quoted overall length figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Porsche 718 figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Porsche 718 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Will the Porsche 718 fit your garage and parking space?

Measured against a standard single garage door (8 ft wide, 7 ft tall, 20 ft deep stall) and a standard US surface parking space (9 ft x 18 ft). Measure your own opening before buying — older garages are frequently narrower.

Garage door width
Fits

70.9 in wide (body only, mirrors folded) — about 25.1 in of total clearance, so roughly 13 in per side.

Garage door height
Clears

50.8 in tall — 33.2 in of headroom before roof rails, antennas, or a roof box are added.

Parking space
Fits a standard stall

172.4 in long leaves 43.6 in to spare in an 18 ft space, and 37.1 in of side clearance in a 9 ft one.

Its wheelbase (97.6 in) accounts for about 57% of overall length. A higher share generally means shorter overhangs — better approach and departure clearance on driveways and ramps, and more cabin space for the same parking footprint.

Want to see it against another vehicle at the same scale? Open the car size comparison tool or check the Porsche 718 curb weight to pair footprint with mass.

Frequently Asked Questions About 718 Dimensions

How long is the Porsche 718?

The Porsche 718 is 172.441 inches long, 70.8661 inches wide and 50.7874 inches tall. That is roughly 14.4 feet — compare it with your garage depth before buying.

Will the Porsche 718 fit in a standard garage?

A standard single-car garage is about 20 feet (240 in) deep and 10 feet (120 in) wide. At 172.441 in long and 70.8661 in wide, the Porsche 718 fits with 68 in of room to spare front-to-back. Remember to allow for mirrors and door swing.

How much does the Porsche 718 weigh?

Curb weight for the Porsche 718 is about 3,031 lbs. Curb weight excludes passengers and cargo, so add roughly 150 lbs per occupant when calculating payload.

View full Porsche 718 specs

Dimensions for other Porsche models

Dimensions on other brands

Compare across every brand

All Porsche 718 specifications

More Porsche models

View all Porsche models →

Browse other makes

Free tools people use next

No account needed
Decode any VINEngine, drivetrain & towing from a VINCompare car sizesOverlay two vehicles to scaleMaintenance scheduleService intervals + PDF exportBest MPG, rankedTop EPA combined MPG by class