2025 McLaren 750S Spider vs 2025 Mercedes-Benz SL-Class
Comparison Overview
The most significant numerical divergence between the 2025 McLaren 750S Spider and the 2025 Mercedes-Benz SL-Class is the MSRP, separating the two by a massive $252,550, with the McLaren starting at $364,500. This price gap is reflected in performance metrics: the 750S Spider delivers a potent 740 hp and 590 lb-ft of torque, significantly eclipsing the SL-Class's 416 hp and 369 lb-ft of torque—a deficit of 324 horsepower. Furthermore, fuel economy is highly differentiated; the SL-Class achieves a combined 22 MPG, whereas the McLaren provides no official rating, suggesting a heavy focus on performance over efficiency. Dimensions also show divergence, with the McLaren being notably lower at 47.1 inches compared to the SL-Class's 53.5 inches height, while the SL offers a 7.5 cu ft cargo capacity, a metric the McLaren omits. The performance-to-price ratio strongly favors the SL-Class for practical application.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Mercedes-Benz SL-Class
The Mercedes-Benz SL-Class wins for commuting due to its superior 22 combined MPG and significantly lower initial cost of $111,950.
2025 Mercedes-Benz SL-Class
The SL-Class is the practical choice, evidenced by its 7.5 cu ft cargo capacity, which the McLaren 750S Spider does not openly address.
2025 McLaren 750S Spider
The McLaren 750S Spider offers substantially higher output with 740 hp and 590 lb-ft of torque versus the SL-Class's 416 hp.
2025 Mercedes-Benz SL-Class
The Mercedes-Benz SL-Class provides a comprehensive convertible experience for $252,550 less than the McLaren 750S Spider.
Choose the McLaren 750S Spider if...
- Absolute peak performance and horsepower (740 hp) are the primary purchasing criteria.
- The owner prioritizes the unique driving dynamics of a 7-speed automated manual transmission over traditional automatic shifting.
- Budget is unrestricted, as the MSRP of $364,500 places it in a distinct hypercar segment.
Choose the Mercedes-Benz SL-Class if...
- Fuel economy is a consideration, given the SL-Class achieves 22 combined MPG (19 City/27 Highway).
- A preference exists for a 9-speed shiftable automatic transmission that offers more gear ratios than the McLaren's 7-speed unit.
- Need for accessible utility, indicated by the 7.5 cu ft of available cargo space.
Key Dimensions
| Dimension | McLaren 750S Spider | Mercedes-Benz SL-Class |
|---|---|---|
| Length | 179.9" | 185.2" |
| Width | - | 75.4" |
| Height | 47.1" | 53.5" |
| Wheelbase | 105.1" | 106.3" |
Features Comparison
Safety
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Front Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Brake Drying | ✓ | ✓ |
| Brake Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Integrated Headrests | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Blind Spot Monitor | — | ✓ |
| Driver Attention Alert | — | ✓ |
| Pre-Collision Safety System | — | ✓ |
| Post-Collision Safety System | — | ✓ |
| Rear Head Airbags | — | ✓ |
| Front Ventilated Disc Brakes | — | ✓ |
| Rear Ventilated Disc Brakes | — | ✓ |
| Adaptive Headlights | — | ✓ |
| Self-Leveling Headlights | — | ✓ |
| Cornering Lights | — | ✓ |
| Integrated Turn Signal Mirrors | — | ✓ |
| Front Power Adjustable Headrests | — | ✓ |
| Rear Headrests | — | 2 |
| Rear Integrated Headrests | — | ✓ |
Engine
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Base Engine Displacement | 4.0 L | 2.0 L |
| Number of Cylinders | V8 | inline 4 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 740 hp @ 7500 rpm | 416 hp @ 6750 rpm |
| Torque | 590 lb-ft @ 5500 rpm | 369 lb-ft @ 3000 rpm |
| Number of Valves | 32 | 16 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Transmission Type | 7-speed automated manual | 9-speed shiftable automatic |
| Drivetrain Type | rear wheel drive | rear wheel drive |
Fuel
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Driving Range (City/Highway) | 0/0 mi. | 351.5/499.5 mi. |
| Fuel Tank Capacity | 19.0 gal. | 18.5 gal. |
| EPA Fuel Economy (City/Highway) | — | 19/27 MPG |
| EPA Fuel Economy (Combined) | — | 22 MPG |
Comfort & Convenience
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Power Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Simulated Alloy Trim on Steering Wheel | ✓ | — |
| Dual Zone Climate Control | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Audio Controls on Steering Wheel | — | ✓ |
| Front View Camera | — | ✓ |
| Side View Camera | — | ✓ |
| Rear View Camera | — | ✓ |
| Front Parking Sensors | — | ✓ |
| Rear Parking Sensors | — | ✓ |
| Automatic Parking Assist | — | ✓ |
| Wireless Charging Pad | — | ✓ |
| Universal Remote Transmitter | — | ✓ |
| Front Door Pockets | — | ✓ |
| Heated Steering Wheel | — | ✓ |
| Interior Air Filtration | — | ✓ |
| Sun Sensor | — | ✓ |
| Dual Vanity Mirrors | — | ✓ |
| Turn Signal Indicators in Mirrors | — | ✓ |
In Car Entertainment
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Infotainment Display | 8.0 in | 11.9 in |
| AM/FM Stereo | ✓ | ✓ |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wired) | ✓ | — |
| USB Port | ✓ | ✓ |
| Auxiliary Audio Input | ✓ | — |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Premium Brand Stereo System | — | Burmester |
| Premium Speaker Brand | — | Burmester |
| Stereo Power | — | 650W |
| Speaker System | — | 11 |
| Subwoofer Count | — | 1 |
| Surround Audio | — | Discrete |
| Android Auto (Wireless) | — | ✓ |
| Apple CarPlay (Wireless) | — | ✓ |
| Satellite Radio Trial Period | — | 6 months |
| Speed Sensitive Volume Control | — | ✓ |
Power Feature
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| One-Touch Power Windows | 2 | 2 |
| Keyless Entry | ✓ | ✓ |
| Reverse Tilt Dual Mirrors | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Reverse Tilt Passenger Mirror | — | ✓ |
Frontseats
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Seat Material: Alcantara | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Manual Adjustments | 6-way | — |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Manual Adjustments | 4-way | — |
| Front Head Room | — | 37.7 in. |
| Front Leg Room | — | 41.5 in. |
| Front Shoulder Room | — | 56.3 in. |
| Seat Material: Premium Leather | — | ✓ |
| Driver Seat Power Adjustments | — | 12-way |
| Driver Seat Lumbar Support | — | Power |
| Driver Seat Thigh Extension | — | ✓ |
| Driver Seat Memory Settings | — | 3 |
| Passenger Seat Power Adjustments | — | 12-way |
| Passenger Seat Height Adjustment | — | ✓ |
| Passenger Seat Lumbar Support | — | Power |
| Passenger Seat Thigh Extension | — | ✓ |
| Passenger Seat Memory Settings | — | 3 |
| Driver Seat Heating | — | Multi-level |
| Passenger Seat Heating | — | Multi-level |
| Driver Seat Ventilation | — | ✓ |
| Passenger Seat Ventilation | — | ✓ |
| Seat Massage Function | — | ✓ |
Rearseats
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Rear Head Room | — | 32.7 in. |
| Rear Shoulder Room | — | 44.1 in. |
Tires and Wheels
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 20 x 11.0 in. | 19 x 11.0 in. |
| Tire Type | Performance | Performance |
| Tire Size | 305/30R | 285/40R Z |
Suspension
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | — | ✓ |
| Rear Stabilizer Bar | — | ✓ |
Warranty
| Feature | McLaren | Mercedes-Benz |
|---|---|---|
| Basic Warranty | 3 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 3 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 10 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Hybrid Component Warranty | — | 6 yr./ 62000 mi. |
| Roadside Assistance | — | 4 yr./ 50000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 McLaren 750S Spider and 2025 Mercedes-Benz SL-Class.
What is the direct performance gap based on published horsepower figures?
The 2025 McLaren 750S Spider produces 740 hp, creating a 324 hp advantage over the 2025 Mercedes-Benz SL-Class, which outputs 416 hp.
How much more does the McLaren 750S Spider cost than the Mercedes-Benz SL-Class?
The McLaren carries an MSRP of $364,500, which is $252,550 higher than the SL-Class starting price of $111,950.
Which vehicle is specified as being more fuel-efficient?
The Mercedes-Benz SL-Class is rated for 22 combined MPG, while the McLaren 750S Spider does not list a fuel economy rating, indicating the SL-Class is significantly more efficient.
Are both convertibles similar in size and profile?
No, the McLaren is substantially lower, standing at 47.1 inches in height compared to the SL-Class's 53.5 inches. However, the SL-Class is slightly longer at 185.2 inches versus the McLaren's 179.9 inches.
What transmission differences affect the driving experience?
The 750S uses a performance-oriented 7-speed automated manual, while the SL-Class employs a comfort-focused 9-speed shiftable automatic transmission.
Does the SL-Class offer any measurable cargo storage?
Yes, the 2025 Mercedes-Benz SL-Class is listed with 7.5 cubic feet of cargo capacity, a specification not provided for the McLaren 750S Spider.
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