Mercedes-Benz SL trim comparison
2026 Mercedes-Benz SL AMG SL 55 vs AMG SL 63 S E PERFORMANCE
The SL AMG SL 55 starts at $145,250 while the AMG SL 63 S E PERFORMANCE is $207,900. That $62,650 gap buys 6 meaningful differences.
This trim jump changes the engine from 4.0L V8 Turbo to 4.0L V8 phev Turbo. Everything else is secondary to whether that powertrain difference matters for how you drive.
Start with the AMG SL 55 if the 4.0L V8 Turbo already feels sufficient for the way you drive. Step up to the AMG SL 63 S E PERFORMANCE only when the 4.0L V8 phev Turbo powertrain is the reason you are moving higher in the lineup.
If you are budgeting this move monthly, the jump from the AMG SL 55 to the AMG SL 63 S E PERFORMANCE is about $1103/month on a 60-month loan at 6.5% APR with 10% down. That works out to roughly $66,180 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 AMG SL 55 and AMG SL 63 S E PERFORMANCE share the same 9-speed shiftable automatic transmission and identical wheelbase and body dimensions.
The upgrade math
You are paying $62,650 for 5 measurable differences, which works out to about $12,530 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 | AMG SL 55 | AMG SL 63 S E PERFORMANCE |
|---|---|---|
| Pricing | ||
| MSRP | $145,250 | $207,900 |
| Powertrain | ||
| Engine | 4.0L V8 Turbo | 4.0L V8 phev Turbo |
| Horsepower | 469 hp | 805 hp |
| Torque | 516 lb-ft | 1047 lb-ft |
| Transmission | 9-speed shiftable automatic | 9-speed shiftable automatic |
| Drivetrain | AWD | AWD |
| Fuel Economy | ||
| City MPG | 14 | 16 |
| Highway MPG | 21 | 22 |
| Combined MPG | 16 | 18 |
| Fuel Tank | 18.5 gal | 18.5 gal |
| Dimensions | ||
| Curb Weight | 4,277 lbs | 4,839 lbs |
| Wheelbase | 106.3" | 106.3" |
| Length | 185.2" | 185.2" |
| Width | 75.4" | 75.4" |
| Height | 53.5" | 53.5" |
| 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 SL AMG SL 55 vs AMG SL 63 S E PERFORMANCE Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the Mercedes-Benz SL 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 SL AMG SL 63 S E PERFORMANCE cost than the AMG SL 55?
The AMG SL 63 S E PERFORMANCE starts at $207,900 compared to $145,250 for the AMG SL 55. That is a $62,650 difference, or approximately $1103/month more on a 60-month loan.
Do the 2026 Mercedes-Benz SL AMG SL 55 and AMG SL 63 S E PERFORMANCE have the same engine?
No. The AMG SL 55 uses a 4.0L V8 Turbo (469 hp, 516 lb-ft), while the AMG SL 63 S E PERFORMANCE has the 4.0L V8 phev Turbo (805 hp, 1047 lb-ft). That is 336 more horsepower. Both pair with the same 9-speed shiftable automatic.
Do the 2026 SL AMG SL 55 and AMG SL 63 S E PERFORMANCE 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 SL come with?
All 2026 Mercedes-Benz SL trims, including both the AMG SL 55 and AMG SL 63 S E PERFORMANCE, 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 SL AMG SL 63 S E PERFORMANCE worth $62,650 more than the AMG SL 55?
The $62,650 buys the 4.0L V8 phev Turbo. If that powertrain matters for how you drive, yes. If not, the AMG SL 55 does the same job for less.
Which 2026 Mercedes-Benz SL trim gets better fuel economy, the AMG SL 55 or the AMG SL 63 S E PERFORMANCE?
The AMG SL 63 S E PERFORMANCE is the more efficient of the two at 18 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.
What $62,650 Gets You
The SL AMG SL 63 S E PERFORMANCE costs $62,650 more than the AMG SL 55. Whether that is worth it depends on how much you value the 4.0L V8 phev Turbo engine (+336 hp). Power and comfort matter differently to different buyers. Weigh them against your priorities.
AMG SL 55 vs. AMG SL 63 S E PERFORMANCE: Day-to-Day
The AMG SL 63 S E PERFORMANCE gets the 4.0L V8 phev Turbo, which changes the character of the car. That means 336 more horsepower and 531 more lb-ft of torque. A significant jump that changes the driving experience.
Fuel Economy Comparison
The SL AMG SL 63 S E PERFORMANCE gets 2 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $292 per year or $1,460 over five years of ownership.
Summary
$62,650 more for the SL AMG SL 63 S E PERFORMANCE gets you 5 real differences. At $1,103/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 SL AMG SL 55
Value-trim add-onsThese picks fit the AMG SL 55 best when the goal is covering the daily-use gaps without paying up to the next trim.
Mercedes-Benz SL AMG SL 63 S E PERFORMANCE
Step-up trim add-onsThese picks suit the AMG SL 63 S E PERFORMANCE 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.