Mercedes-Benz AMG GT trim comparison
2026 Mercedes-Benz AMG GT 55 vs 63
The AMG GT 55 starts at $138,150 while the 63 is $158,350. That $20,200 gap buys 6 meaningful differences.
You are paying $20,200 for styling and convenience. The driving experience is identical.
Stay with the 55 if keeping roughly $355/month in your budget matters. Step up to the 63 only if you want the nicer equipment factory-installed and under warranty. That is the real decision hiding inside this $20,200 trim jump.
Think about this as a monthly tradeoff, not just a sticker gap. The 63 adds about $355/month on a typical 60-month loan, or around $21,300 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 55 and 63 share the same 9-speed shiftable automatic transmission.
The upgrade math
You are paying $20,200 for 5 measurable differences, which works out to about $4,040 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. 6 specification differences, 2 shared.
Full Specification Comparison
Specifications reflect available data as of early 2026. Confirm details with an authorized dealer before purchasing.
| Spec | 55 | 63 |
|---|---|---|
| Pricing | ||
| MSRP | $138,150 | $158,350 |
| Powertrain | ||
| Engine | 4.0L V8 Turbo | 4.0L V8 Turbo |
| Horsepower | 469 hp | 577 hp |
| Torque | 516 lb-ft | 590 lb-ft |
| Transmission | 9-speed shiftable automatic | 9-speed shiftable automatic |
| Drivetrain | AWD | AWD |
| Fuel Economy | ||
| City MPG | 14 | 15 |
| Highway MPG | 20 | 21 |
| Combined MPG | 16 | 17 |
| Fuel Tank | 18.5 gal | 21.1 gal |
| Dimensions | ||
| Curb Weight | 4,343 lbs | 4,740 lbs |
| Wheelbase | 106.3" | 116.2" |
| Length | 186.1" | 199.2" |
| Width | 78.1" | 76.9" |
| Height | 53.3" | 56.8" |
| Warranty | ||
| Bumper-to-Bumper | 4yr/50k | 4yr/50k |
| Powertrain | 4yr/50k | 4yr/50k |
| Corrosion | 4yr/50k | 4yr/50k |
| 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.
2026 Mercedes-Benz AMG GT 55 vs 63 Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the Mercedes-Benz AMG GT lineup, the Mercedes-Benz 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 2026 AMG GT 63 cost than the 55?
The 63 starts at $158,350 compared to $138,150 for the 55. That is a $20,200 difference, or approximately $355/month more on a 60-month loan.
Do the 2026 Mercedes-Benz AMG GT 55 and 63 have the same engine?
Yes. Both use the 4.0L V8 Turbo producing 469 hp and 516 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 2026 AMG GT 55 and 63 have the same drivetrain?
Yes. Both come with AWD as standard. The differences between these trims are in features and equipment, not drivetrain.
What warranty does the 2026 Mercedes-Benz AMG GT come with?
All 2026 Mercedes-Benz AMG GT trims, including both the 55 and 63, come with Mercedes-Benz's standard warranty: 4yr/50k bumper-to-bumper and 4yr/50k powertrain coverage. Warranty does not vary by trim level.
Which 2026 Mercedes-Benz AMG GT trim gets better fuel economy, the 55 or the 63?
The 63 is the more efficient of the two at 17 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 $20,200 Gap
The 63 earns its premium. For $20,200 more, you get horsepower and torque, making this one of the more straightforward upgrade decisions in the AMG GT lineup.
How the 55 and 63 Feel Different
108 more horsepower in the 63. A jump this size changes how the AMG GT feels on the highway. 74 more lb-ft for the 63. A noticeable difference in low-end acceleration.
Fuel Economy Comparison
The AMG GT 63 gets 1 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $154 per year or $770 over five years of ownership.
The Short Version
$20,200 more for the AMG GT 63 gets you 5 real differences. At $355/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.
Mercedes-Benz AMG GT 55
Value-trim add-onsThese picks fit the 55 best when the goal is covering the daily-use gaps without paying up to the next trim.
Mercedes-Benz AMG GT 63
Step-up trim add-onsThese picks suit the 63 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 2026 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 Mercedes-Benz or any dealership.
Page updated 2026-03-18. Verify equipment, pricing, and regional availability with the manufacturer or dealer.