Mercedes-Benz SL-Class trim comparison
2024 Mercedes-Benz SL-Class AMG SL 55 vs AMG SL 63
The SL-Class AMG SL 55 starts at $144,500 while the AMG SL 63 is $187,000. That $42,500 gap buys 4 meaningful differences.
Same engine, same drivetrain, same fuel economy. The $42,500 gap is pure equipment.
The AMG SL 55 is the cleaner stopping point if keeping roughly $748/month in your budget matters. The AMG SL 63 earns the extra money only if you want the nicer equipment factory-installed and under warranty.
The cleanest way to feel this upgrade is through the payment: about $748/month more over 60 months, or roughly $44,880 extra all-in once interest is included. At this end of the market, the payment change usually matters less than whether the added equipment actually changes daily use.
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
The AMG SL 55 and AMG SL 63 are mechanically identical where it counts: the same 9-speed shiftable automatic transmission and identical wheelbase and body dimensions.
The upgrade math
You are paying $42,500 for 3 measurable differences, which works out to about $14,167 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. 4 specification differences, 3 shared.
Full Specification Comparison
Specifications reflect available data as of early 2024. Confirm details with an authorized dealer before purchasing.
| Spec | AMG SL 55 | AMG SL 63 |
|---|---|---|
| Pricing | ||
| MSRP | $144,500 | $187,000 |
| 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 | 14 |
| Highway MPG | 21 | 21 |
| Combined MPG | 16 | 16 |
| Fuel Tank | 18.5 gal | 18.5 gal |
| Annual Fuel Cost (EPA) | $3,600/yr | $3,600/yr |
| Dimensions | ||
| Curb Weight | 4,277 lbs | 4,321 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.
2024 Mercedes-Benz SL-Class AMG SL 55 vs AMG SL 63 Questions Shoppers Ask
Use this page for the direct trim answer, then zoom back out to the Mercedes-Benz SL-Class 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 2024 SL-Class AMG SL 63 cost than the AMG SL 55?
The AMG SL 63 starts at $187,000 compared to $144,500 for the AMG SL 55. That is a $42,500 difference, or approximately $748/month more on a 60-month loan.
Do the 2024 Mercedes-Benz SL-Class AMG SL 55 and AMG SL 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 2024 SL-Class AMG SL 55 and AMG SL 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 2024 Mercedes-Benz SL-Class come with?
All 2024 Mercedes-Benz SL-Class trims, including both the AMG SL 55 and AMG SL 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.
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.
Is the SL-Class AMG SL 63 Worth $42,500 More?
At $42,500 more, the SL-Class AMG SL 63 adds horsepower and torque. This is a situational call. If those features are on your must-have list, the upgrade makes sense. If not, the AMG SL 55 delivers the same core SL-Class experience for less.
The Differences You'll Notice Most
The AMG SL 63 produces 108 more hp. That is enough to feel in every merge and every pass. 74 more lb-ft for the AMG SL 63. A noticeable difference in low-end acceleration.
What Both Trims Share
The SL-Class AMG SL 55 and AMG SL 63 share the same engine, drivetrain, transmission, and fuel economy. The $42,500 difference comes down to 3 feature and equipment changes, not mechanical differences.
Bottom Line
The SL-Class AMG SL 63 costs $42,500 more than the AMG SL 55 (about $748/month more on a 60-month loan). That buys 3 meaningful changes at $14,167 per change. Whether that trade-off is worth it depends on which features matter to your daily driving.
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-Class 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-Class AMG SL 63
Step-up trim add-onsThese picks suit the AMG SL 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 2024 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.