Porsche 718 Cayman trim comparison
2025 Porsche 718 Cayman GTS 4.0 vs GT4 RS
The 718 Cayman GTS 4.0 starts at $99,700 while the GT4 RS is $164,200. That $64,500 gap buys 5 meaningful differences.
You are paying $64,500 for styling and convenience. The driving experience is identical.
Stay with the GTS 4.0 if keeping roughly $1135/month in your budget matters. Step up to the GT4 RS only if you want the nicer equipment factory-installed and under warranty. That is the real decision hiding inside this $64,500 trim jump.
Think about this as a monthly tradeoff, not just a sticker gap. The GT4 RS adds about $1135/month on a typical 60-month loan, or around $68,100 more overall with interest. Luxury-trim buyers usually care less about the raw payment delta and more about whether the upgrade changes comfort, capability, or overall feel.
Lock one trim, change the other side, and move through exact pair pages without resetting back to the full lineup every time.
Who notices the difference
The higher trim starts to make more sense when you want the nicer equipment factory-installed and under warranty.
When both feel the same
Both the GTS 4.0 and GT4 RS share the same 7-speed automated manual transmission.
The upgrade math
You are paying $64,500 for 4 measurable differences, which works out to about $16,125 per change.
Key Differences at a Glance
This is the fast read: price, power, efficiency, and the feature flips most likely to change the answer.
Every Difference, Side by Side
This is the full read behind the quick decision signals above: the complete hardware, comfort, and equipment story. 5 specification differences, 2 shared.
Full Specification Comparison
Specifications reflect available data as of early 2025. Confirm details with an authorized dealer before purchasing.
| Spec | GTS 4.0 | GT4 RS |
|---|---|---|
| Pricing | ||
| MSRP | $99,700 | $164,200 |
| Powertrain | ||
| Engine | 4.0L flat 6 | 4.0L flat 6 |
| Horsepower | 394 hp | 493 hp |
| Torque | 317 lb-ft | 331 lb-ft |
| Transmission | 7-speed automated manual | 7-speed automated manual |
| Drivetrain | RWD | RWD |
| Fuel Economy | ||
| City MPG | 19 | 15 |
| Highway MPG | 24 | 19 |
| Combined MPG | 21 | 16 |
| Fuel Tank | 16.9 gal | 16.9 gal |
| Dimensions | ||
| Curb Weight | 3,241 lbs | 3,227 lbs |
| Wheelbase | 97.4" | 97.8" |
| Length | 173.4" | 175.4" |
| Width | 70.9" | 71.7" |
| Height | 50.2" | 49.9" |
| Warranty | ||
| Bumper-to-Bumper | 4yr/50k | 4yr/50k |
| Powertrain | 4yr/50k | 4yr/50k |
| Corrosion | 12yr/unlimited | 12yr/unlimited |
| Roadside Assistance | 4yr/50k | 4yr/50k |
Data sources: licensed third-party automotive data, EPA fueleconomy.gov, NHTSA, and official manufacturer materials. Values marked est. are estimated.
2025 Porsche 718 Cayman GTS 4.0 vs GT4 RS Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the Porsche 718 Cayman lineup, the Porsche brand hub, the Sports Cars, the how to pick a trim guide, or our mid-trim value research when you need the bigger shopping path behind this one matchup.
How much more does the 2025 718 Cayman GT4 RS cost than the GTS 4.0?
The GT4 RS starts at $164,200 compared to $99,700 for the GTS 4.0. That is a $64,500 difference, or approximately $1135/month more on a 60-month loan.
Do the 2025 Porsche 718 Cayman GTS 4.0 and GT4 RS have the same engine?
Yes. Both use the 4.0L flat 6 producing 394 hp and 317 lb-ft of torque. The engine hardware does not change between these trims, so the real differences are in equipment and feature content.
Do the 2025 718 Cayman GTS 4.0 and GT4 RS have the same drivetrain?
Yes. Both come with RWD as standard. The differences between these trims are in features and equipment, not drivetrain.
What warranty does the 2025 Porsche 718 Cayman come with?
All 2025 Porsche 718 Cayman trims, including both the GTS 4.0 and GT4 RS, come with Porsche's standard warranty: 4yr/50k bumper-to-bumper and 4yr/50k powertrain coverage. Warranty does not vary by trim level.
Which 2025 Porsche 718 Cayman trim gets better fuel economy, the GTS 4.0 or the GT4 RS?
The GTS 4.0 is the more efficient of the two at 21 combined MPG, versus 16 for the other trim. That matters most if you are balancing running costs against the extra power, drivetrain, or comfort equipment tied to the pricier trim.
The Full Story Behind This Price Gap
Use the direct answer above for this exact matchup, then use these guides to understand whether you are really looking at a feature step-up, a package shuffle, or the point where the lineup starts changing in a meaningful way.
Breaking Down the $64,500 Gap
The 718 Cayman GT4 RS costs $64,500 more but shares the same engine, drivetrain as the GTS 4.0. The differences are mostly cosmetic or marginal, so the practical jump is limited.
How the GTS 4.0 and GT4 RS Feel Different
99 more horsepower in the GT4 RS. A jump this size changes how the 718 Cayman feels on the highway. Torque difference of 14 lb-ft between the two. Marginal in daily driving.
Fuel Economy Comparison
The 718 Cayman GTS 4.0 gets 5 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $625 per year or $3,125 over five years of ownership.
The Short Version
$64,500 more for the 718 Cayman GT4 RS gets you 4 real differences. At $1,135/month more, the question is whether those specific changes are things you will use regularly.
Trim-Matched Accessories
These add-ons are split by trim intent so the recommendations follow the actual use case, not just the same repeated product block.
Porsche 718 Cayman GTS 4.0
Value-trim add-onsThese picks fit the GTS 4.0 best when the goal is covering the daily-use gaps without paying up to the next trim.
Porsche 718 Cayman GT4 RS
Step-up trim add-onsThese picks suit the GT4 RS when you want the accessories to match the nicer cabin, broader utility, or more premium use case.
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Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material for the 2025 model year. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with Porsche or any dealership.
Page updated 2026-03-18. Verify equipment, pricing, and regional availability with the manufacturer or dealer.