2020 Mercedes SL vs. 2020 Lamborghini Aventador

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/06

The SL’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Aventador doesn’t offer pre-crash pretensioners.

The SL has standard NECK-PRO Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the NECK-PRO Head Restraints system moves the headrests forward to prevent neck and spine injuries. The Aventador doesn’t offer a whiplash protection system.

The SL has a standard Active Brake Assist, which uses forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The Aventador doesn't offer collision warning or crash mitigation brakes.

An active infrared night vision system optional on the SL helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then displays the image on a monitor in the dashboard. The Aventador doesn’t offer a night vision system.

The SL’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. The Aventador doesn’t offer a lane departure warning system.

The SL’s optional blind spot warning system uses digital cameras monitored by computer to alert the driver to moving objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. The Aventador doesn’t offer a system to reveal objects in the driver’s blind spots.

The SL’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Aventador doesn’t offer a driver alert monitor.

The SL has standard Mercedes-Benz Emergency Call, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Aventador doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the SL and the Aventador have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.

Warranty

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There are almost 11 times as many Mercedes dealers as there are Lamborghini dealers, which makes it much easier should you ever need service under the SL’s warranty.

Reliability

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The Aventador’s redline is at 8500 RPM, which causes more engine wear, and a greater chance of a catastrophic engine failure. The SL has a 6300 to 6500 RPM redline.

Engine

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The SL 550’s standard 4.7 turbo V8 produces 9 lbs.-ft. more torque (516 vs. 507) than the Aventador S’ standard 6.5 DOHC V12.

Fuel Economy and Range

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On the EPA test cycle the SL gets better fuel mileage than the Aventador:

MPG

SL

450 3.0 turbo V6

20 city/28 hwy

550 4.0 turbo V8

17 city/25 hwy

Aventador

6.5 DOHC V12

9 city/15 hwy

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes SL higher (3 out of 10) than the Lamborghini Aventador (1). This means the SL produces up to 22.5 pounds less smog-producing pollutants than the Aventador every 15,000 miles.

Transmission

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A nine-speed automatic is standard on the Mercedes SL, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the Aventador.

Brakes and Stopping

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In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The SL has a standard brake assist system to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Aventador doesn’t offer a brake assist feature.

Suspension and Handling

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The SL offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Lamborghini doesn’t offer an active suspension on the Aventador.

The SL offers an optional automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The Aventador doesn’t offer a load leveling suspension.

For better maneuverability, the SL’s turning circle is 4.8 feet tighter than the Aventador’s (36.2 feet vs. 41 feet).

Chassis

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The SL is 6.6 inches shorter than the Aventador, making the SL easier to handle, maneuver and park in tight spaces.

The SL is 7.7 inches narrower on average than the Aventador, making the SL easier to handle and maneuver in traffic.

The SL’s standard power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The Aventador doesn’t offer a retractable hardtop.

Cargo Capacity

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The SL has a much larger trunk with its top down than the Aventador Roadster (8.5 vs. 5.2 cubic feet). The SL has a much larger trunk with its top up than the Aventador Roadster (13.5 vs. 5.2 cubic feet).

To make loading and unloading groceries and cargo easier when your hands are full, the SL’s power trunk can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Aventador doesn’t offer a power or hands-free opening trunk.

Servicing Ease

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An ASSYST PLUS is standard on the SL to save the owner time and money by calculating maintenance intervals for oil changes, spark plug replacement, air filter replacement, tire rotation, radiator flush, brake pad replacement and transmission fluid replacement based on odometer mileage. This takes the guesswork out of keeping your vehicle in top condition and helps it last longer. Lamborghini doesn’t offer a maintenance reminder on the Aventador.

Ergonomics

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The SL has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Aventador doesn’t offer a remote starting system.

When three different drivers share the SL, the memory system makes it convenient for all three. Each setting activates different, customized memories for the driver and front passenger’s seat positions, steering wheel position, outside mirror angle and climate settings. The Aventador doesn’t offer a memory system.

The SL’s standard easy entry system raises the steering wheel, making it easier for the driver to get in and out. The Aventador doesn’t offer an easy entry system.

The SL’s standard power window controls are mounted on the armrest for easy access. The Aventador’s available power window controls are spread out on the center console where they can’t be seen without the driver completely removing his eyes from the road.

In case of a sudden change of weather, the SL has a standard remote convertible top that can be raised from a distance to protect the interior of the vehicle from damage. The Aventador doesn’t offer a remote top, so the driver will have to run to the car, get in and manually raise the top to prevent the interior from being damaged.

Heated windshield washer fluid is standard on the SL to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The Aventador doesn’t offer heated windshield washer fluid.

While driving with high beams on, sensitive light sensors standard on the SL detect other vehicles which could be blinded and automatically switch to low beams. The Aventador doesn’t offer automatic dimming high beams.

To help drivers avoid possible obstacles, the SL has standard cornering lights to illuminate around corners when the turn signals are activated. The Aventador doesn’t offer cornering lights. The SL also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the SL has standard extendable sun visors. The Aventador doesn’t offer extendable visors.

The SL’s sun-visors swivel front-to-side to block glare from the side windows. The Aventador’s visors are fixed into the windshield header.

When the SL is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Aventador’s mirror doesn’t automatically adjust for backing.

The SL’s standard rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Aventador has an automatic rear view mirror, but its side mirrors don’t dim.

Optional air-conditioned seats in the SL keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Aventador doesn’t offer air-conditioned seats.

The SL offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Aventador.

The SL’s standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Aventador doesn’t offer dual zone air conditioning.

To keep a safe, consistent following distance, the SL offers an optional Active Distance Assist Distronic, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Aventador doesn’t offer an adaptive cruise control.

The SL’s optional Active Parking Assist can parallel park or back into a parking spot by itself, operating the brakes and steering automatically. The Aventador doesn’t offer an automated parking system.

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