Mercedes-Benz SL-Class trim comparison
2025 Mercedes-Benz SL-Class AMG SL 43 vs AMG SL 63 S E PERFORMANCE
The SL-Class AMG SL 43 starts at $111,950 while the AMG SL 63 S E PERFORMANCE is $207,150. That $95,200 gap buys 7 meaningful differences.
This is a powertrain and drivetrain change. The AMG SL 63 S E PERFORMANCE gets the 4.0L V8 phev Turbo and AWD, so the $95,200 is buying a different driving experience, not just nicer trim.
This is a real hardware fork, not just a trim-label shuffle. The AMG SL 43 is enough if the 2.0L I4 mild-hybrid Turbo with RWD already fits your routine; the AMG SL 63 S E PERFORMANCE only earns the jump when the 4.0L V8 phev Turbo and AWD setup is the point of the upgrade.
If you are budgeting this move monthly, the jump from the AMG SL 43 to the AMG SL 63 S E PERFORMANCE is about $1677/month on a 60-month loan at 6.5% APR with 10% down. That works out to roughly $100,620 more by the time interest is counted. If that different powertrain is not part of your real use case, the cheaper trim keeps more money in your pocket without changing the core experience you need.
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
The AMG SL 43 and AMG SL 63 S E PERFORMANCE 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 $95,200 for 6 measurable differences, which works out to about $15,867 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. 7 specification differences, 0 shared.
Full Specification Comparison
Specifications reflect available data as of early 2025. Confirm details with an authorized dealer before purchasing.
| Spec | AMG SL 43 | AMG SL 63 S E PERFORMANCE |
|---|---|---|
| Pricing | ||
| MSRP | $111,950 | $207,150 |
| Powertrain | ||
| Engine | 2.0L I4 mild-hybrid Turbo | 4.0L V8 phev Turbo |
| Horsepower | 416 hp | 805 hp |
| Torque | 369 lb-ft | 1047 lb-ft |
| Transmission | 9-speed shiftable automatic | 9-speed shiftable automatic |
| Drivetrain | RWD | AWD |
| Fuel Economy | ||
| City MPG | 19 | 16 |
| Highway MPG | 27 | 22 |
| Combined MPG | 22 | 18 |
| Fuel Tank | 18.5 gal | 18.5 gal |
| Annual Fuel Cost (EPA) | $2,650/yr | No published data |
| Dimensions | ||
| Curb Weight | 3,825 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.
2025 Mercedes-Benz SL-Class AMG SL 43 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-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 2025 SL-Class AMG SL 63 S E PERFORMANCE cost than the AMG SL 43?
The AMG SL 63 S E PERFORMANCE starts at $207,150 compared to $111,950 for the AMG SL 43. That is a $95,200 difference, or approximately $1677/month more on a 60-month loan.
Do the 2025 Mercedes-Benz SL-Class AMG SL 43 and AMG SL 63 S E PERFORMANCE have the same engine?
No. The AMG SL 43 uses a 2.0L I4 mild-hybrid Turbo (416 hp, 369 lb-ft), while the AMG SL 63 S E PERFORMANCE has the 4.0L V8 phev Turbo (805 hp, 1047 lb-ft). That is 389 more horsepower. Both pair with the same 9-speed shiftable automatic.
Does the 2025 SL-Class AMG SL 43 come with AWD?
No. The AMG SL 43 comes standard with RWD while the AMG SL 63 S E PERFORMANCE has AWD. This affects traction, fuel economy, and curb weight.
What warranty does the 2025 Mercedes-Benz SL-Class come with?
All 2025 Mercedes-Benz SL-Class trims, including both the AMG SL 43 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 2025 Mercedes-Benz SL-Class AMG SL 63 S E PERFORMANCE worth $95,200 more than the AMG SL 43?
The AMG SL 63 S E PERFORMANCE changes both the engine and drivetrain for $95,200 more. That is a hardware upgrade, not just a feature bump.
Which 2025 Mercedes-Benz SL-Class trim gets better fuel economy, the AMG SL 43 or the AMG SL 63 S E PERFORMANCE?
The AMG SL 43 is the more efficient of the two at 22 combined MPG, versus 18 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 $95,200 Gets You
Same most mechanical specs, $95,200 more. The SL-Class AMG SL 63 S E PERFORMANCE adds minor equipment upgrades over the AMG SL 43, but the core driving experience is identical.
AMG SL 43 vs. AMG SL 63 S E PERFORMANCE: Day-to-Day
Engine is where these two diverge most: 2.0L I4 mild-hybrid Turbo in the AMG SL 43, 4.0L V8 phev Turbo in the AMG SL 63 S E PERFORMANCE. That means 389 more horsepower and 678 more lb-ft of torque. A significant jump that changes the driving experience. In return, expect about 4 fewer combined MPG. The AMG SL 63 S E PERFORMANCE has AWD while the AMG SL 43 has RWD. This affects traction, weight, and fuel economy.
Fuel Economy Comparison
The SL-Class AMG SL 43 gets 4 more combined MPG. At $3.50/gallon and 12,000 miles/year, that saves roughly $424 per year or $2,120 over five years of ownership.
Summary
The SL-Class AMG SL 63 S E PERFORMANCE costs $95,200 more than the AMG SL 43 (about $1,677/month more on a 60-month loan). That buys 6 meaningful changes at $15,867 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 43
Value-trim add-onsThese picks fit the AMG SL 43 best when the goal is covering the daily-use gaps without paying up to the next trim.
Mercedes-Benz SL-Class 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 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 Mercedes-Benz or any dealership.
Page updated 2026-03-18. Verify equipment, pricing, and regional availability with the manufacturer or dealer.