To help make backing safer, the Quattroporte’s cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The S-Class doesn’t offer a cross-path warning system.
Both the Quattroporte and the S-Class have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems and around view monitors.
The Quattroporte has 4.5 gallons more fuel capacity than the S-Class 550e Hybrid’s standard fuel tank (21.1 vs. 16.6 gallons), for longer range between fill-ups.
The Quattroporte has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The S-Class doesn’t offer a cap-less fueling system.
The Quattroporte’s standard 275/40R19 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the S-Class’ standard 45 series tires. The Quattroporte’s optional 245/35R21 front and 285/30R21 rear tires have a lower 35 series front and 30 series rear profile than the S-Class’ optional 40 series front and 35 series rear tires.
For better ride, handling and brake cooling the Quattroporte has standard 19-inch wheels. Smaller 18-inch wheels are standard on the S-Class. The Quattroporte’s optional 21-inch wheels are larger than the 20-inch wheels optional on the S-Class.
For better handling and stability, the track (width between the wheels) on the Quattroporte is 1.3 inches wider in the front and 1.6 inches wider in the rear than on the S-Class.
The Quattroporte’s front to rear weight distribution is more even (50% to 50%) than the S-Class’ (51.6% to 48.4%). This gives the Quattroporte more stable handling and braking.
The Maserati Quattroporte may be more efficient, handle and accelerate better because it weighs about 550 to 1050 pounds less than the Mercedes S-Class.
The Quattroporte has 4.6 inches more front shoulder room and .4 inches more rear headroom than the S-Class.
The Quattroporte has a much larger trunk than the S-Class (18.7 vs. 16.3 cubic feet).
The Quattroporte’s standard rear seats fold to accommodate long and bulky cargo. The S-Class doesn’t offer folding rear seats.
The Quattroporte’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The S-Class does not have an oil pressure gauge.
In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Quattroporte has standard headlight washers to keep headlight output high. The S-Class doesn’t offer headlight washers.