Mercedes-Benz AMG GT trim comparison
2026 Mercedes-Benz AMG GT 43 vs 63
The AMG GT 43 starts at $102,100 while the 63 is $158,350. That $56,250 gap buys 6 meaningful differences.
This trim jump changes the engine from 3.0L I6 mild-hybrid Turbo to 4.0L V8 Turbo. Everything else is secondary to whether that powertrain difference matters for how you drive.
Start with the 43 if the 3.0L I6 mild-hybrid Turbo already feels sufficient for the way you drive. Step up to the 63 only when the 4.0L V8 Turbo powertrain is the reason you are moving higher in the lineup.
If you are budgeting this move monthly, the jump from the 43 to the 63 is about $990/month on a 60-month loan at 6.5% APR with 10% down. That works out to roughly $59,400 more by the time interest is counted. The payment only makes sense if that different powertrain matters to the way you actually drive, tow, or live with the vehicle.
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 are specifically shopping for the stronger powertrain, not just more trim content.
When both feel the same
Both the 43 and 63 share the same 9-speed shiftable automatic transmission and identical wheelbase and body dimensions.
The upgrade math
You are paying $56,250 for 5 measurable differences, which works out to about $11,250 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, 1 shared.
Full Specification Comparison
Specifications reflect available data as of early 2026. Confirm details with an authorized dealer before purchasing.
| Spec | 43 | 63 |
|---|---|---|
| Pricing | ||
| MSRP | $102,100 | $158,350 |
| Powertrain | ||
| Engine | 3.0L I6 mild-hybrid Turbo | 4.0L V8 Turbo |
| Horsepower | 362 hp | 577 hp |
| Torque | 369 lb-ft | 590 lb-ft |
| Transmission | 9-speed shiftable automatic | 9-speed shiftable automatic |
| Drivetrain | AWD | AWD |
| Fuel Economy | ||
| City MPG | 19 | 15 |
| Highway MPG | 24 | 21 |
| Combined MPG | 21 | 17 |
| Fuel Tank | 21.1 gal | 21.1 gal |
| Annual Fuel Cost (EPA) | $2,750/yr | No published data |
| Dimensions | ||
| Curb Weight | 4,553 lbs | 4,740 lbs |
| Wheelbase | 116.2" | 116.2" |
| Length | 199.0" | 199.2" |
| Width | 76.9" | 76.9" |
| Height | 57.3" | 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 43 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 43?
The 63 starts at $158,350 compared to $102,100 for the 43. That is a $56,250 difference, or approximately $990/month more on a 60-month loan.
Do the 2026 Mercedes-Benz AMG GT 43 and 63 have the same engine?
No. The 43 uses a 3.0L I6 mild-hybrid Turbo (362 hp, 369 lb-ft), while the 63 has the 4.0L V8 Turbo (577 hp, 590 lb-ft). That is 215 more horsepower. Both pair with the same 9-speed shiftable automatic.
Do the 2026 AMG GT 43 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 43 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.
Is the 2026 Mercedes-Benz AMG GT 63 worth $56,250 more than the 43?
The $56,250 buys the 4.0L V8 Turbo. If that powertrain matters for how you drive, yes. If not, the 43 does the same job for less.
Which 2026 Mercedes-Benz AMG GT trim gets better fuel economy, the 43 or the 63?
The 43 is the more efficient of the two at 21 combined MPG, versus 17 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.
What $56,250 Gets You
The AMG GT 63 costs $56,250 more but shares the same drivetrain as the 43. The differences are mostly cosmetic or marginal, so the practical jump is limited.
43 vs. 63: Day-to-Day
The 63 gets the 4.0L V8 Turbo, which changes the character of the car. That means 215 more horsepower and 221 more lb-ft of torque. A significant jump that changes the driving experience. The cost of that extra capability is roughly 4 fewer combined MPG.
Fuel Economy Comparison
The AMG GT 43 gets 4 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $471 per year or $2,355 over five years of ownership.
Summary
$56,250 more for the AMG GT 63 gets you 5 real differences. At $990/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 43
Value-trim add-onsThese picks fit the 43 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.