Maserati, Quattroporte, M139, Quattroporte DuoSelect (2003-2008)

The Maserati Quattroporte M139 is a luxury grand tourer produced from 2003 to 2007. It was the first Quattroporte model to be based on a monocoque chassis, and featured a longer wheelbase than its predecessor.

Engine

• The base engine is a 4.2-liter V8 with 400 horsepower at 6,700 rpm.
• This engine is paired with a Tiptronic-style six-speed automatic transmission called DuoSelect, featuring two different modes: Auto for smooth, relaxed driving and Sport for more aggressive shifting.
• Later in the production run (2007), Maserati introduced a GTS variant with an uprated 4.2-liter V8 producing 405 horsepower at 6,700 rpm.

Chassis and Suspension

• The Quattroporte features a longer wheelbase than its predecessor, which allows for improved stability and ride quality.
• The car is equipped with adaptive suspension that can adjust to different driving conditions, improving both handling and comfort.
• The chassis was designed to provide exceptional strength and rigidity, allowing for precise steering response.

Interior and Features

• The Quattroporte features a luxurious interior with premium leather upholstery and wood trim throughout.
• The DuoSelect transmission allows drivers to select between two modes: Auto and Sport, which affects the shifting characteristics of the transmission.
• A range of advanced safety features were standard on the Maserati Quattroporte, including four airbags, anti-lock braking system (ABS), and traction control.

Performance

• The base model accelerates from 0-60 mph in 5.3 seconds and reaches a top speed of 155 mph.
• Later GTS models featuring the uprated engine reach a top speed of 174 mph and accelerate to 60 mph in 4.7 seconds.

Production Numbers

• Maserati produced approximately 8,100 Quattroportes from 2003 to 2007.

Innovation

• The DuoSelect transmission was a key innovation in the Quattroporte's design, offering drivers two distinct shifting modes for different driving conditions.
• This transmission allowed Maserati to provide an exceptional driving experience that combined comfort and performance.