2019 Chevrolet Corvette vs. 2019 Maserati GranTurismo Convertible

Detailed Review, Specifications & Comparison

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2019 Maserati GranTurismo Convertible

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Safety

The Corvette has standard OnStar®, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions, 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 GranTurismo Convertible 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 Corvette and the GranTurismo Convertible have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding and daytime running lights.

Warranty

Chevrolet’s powertrain warranty covers the Corvette 1 year and 10,000 miles longer than Maserati covers the GranTurismo Convertible. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the GranTurismo Convertible ends after only 4 years or 50,000 miles.

The Corvette’s corrosion warranty is 2 years and 50,000 miles longer than the GranTurismo Convertible’s (6/100,000 vs. 4/50,000).

Chevrolet pays for the first scheduled maintenance on the Corvette. Chevrolet will pay for the first oil change, lubrication and any other required maintenance in the first year. Maserati doesn’t pay scheduled maintenance for the GranTurismo Convertible.

There are almost 26 times as many Chevrolet dealers as there are Maserati dealers, which makes it much easier should you ever need service under the Corvette’s warranty.

Engine

The Corvette’s standard 6.2 V8 produces 1 more horsepower (455 vs. 454) and 76 lbs.-ft. more torque (460 vs. 384) than the GranTurismo Convertible’s 4.7 DOHC V8. The Corvette Z51’s standard 6.2 V8 produces 6 more horsepower (460 vs. 454) and 81 lbs.-ft. more torque (465 vs. 384) than the GranTurismo Convertible’s 4.7 DOHC V8. The Corvette Z06’s standard 6.2 supercharged V8 produces 196 more horsepower (650 vs. 454) and 266 lbs.-ft. more torque (650 vs. 384) than the GranTurismo Convertible’s 4.7 DOHC V8. The Corvette ZR1’s standard 6.2 supercharged V8 produces 301 more horsepower (755 vs. 454) and 331 lbs.-ft. more torque (715 vs. 384) than the GranTurismo Convertible’s 4.7 DOHC V8.

Fuel Economy and Range

On the EPA test cycle the Corvette gets better fuel mileage than the GranTurismo Convertible:

 

 

 

MPG

Corvette

 

Manual

6.2 OHV V8

16 city/25 hwy

 

 

Z06 6.2 supercharged V8

15 city/22 hwy

 

Auto

6.2 OHV V8

15 city/25 hwy

 

 

Z06 6.2 supercharged V8

14 city/23 hwy

GranTurismo Convertible

 

Auto

3.5 turbo V6

13 city/20 hwy

An engine control system that can shut down half of the engine’s cylinders helps improve the Corvette (except ZR1)’s fuel efficiency. The GranTurismo Convertible doesn’t offer a system that can shut down part of the engine.

To lower fuel costs and make buying fuel easier, the Chevrolet Corvette uses regular unleaded gasoline (premium recommended for maximum performance). The GranTurismo Convertible requires premium, which can cost 20 to 55 cents more per gallon.

The Corvette 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 GranTurismo Convertible doesn’t offer a cap-less fueling system.

Transmission

An eight-speed automatic is available on the Chevrolet Corvette, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the GranTurismo Convertible.

The Corvette’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The GranTurismo Convertible doesn’t offer launch control.

Brakes and Stopping

For better stopping power the Corvette’s brake rotors are larger than those on the GranTurismo Convertible:

 

Corvette GS/Z06

Corvette ZR1

GranTurismo

Front Rotors

14.6 inches

15.5 inches

14.2 inches

Rear Rotors

14.4 inches

15.3 inches

13 inches

The Corvette Z06/Grand Sport offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The GranTurismo Convertible doesn’t offer ceramic brake rotors.

The Corvette stops much shorter than the GranTurismo Convertible:

 

Corvette

GranTurismo

 

70 to 0 MPH

127 feet

150 feet

Car and Driver

Tires and Wheels

For better traction, the Corvette Z06/Grand Sport/ZR1’s tires are larger than the largest tires available on the GranTurismo Convertible (F:285/30R19 & R:335/25R20 vs. F:245/35R20 & R:285/35R20).

The Corvette’s standard 285/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the GranTurismo Convertible’s standard 35 series tires. The Corvette Z06/Grand Sport/ZR1’s 285/30R19 front and 335/25R20 rear tires have a lower 30 series front and 25 series rear profile than the GranTurismo Convertible’s 35 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Corvette can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The GranTurismo Convertible doesn’t offer run-flat tires.

Suspension and Handling

The Corvette Z06 Convertible handles at 1.14 G’s, while the GranTurismo Convertible pulls only .88 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the Corvette’s turning circle is 2.7 feet tighter than the GranTurismo Convertible’s (37.7 feet vs. 40.4 feet).

Chassis

The Chevrolet Corvette may be more efficient, handle and accelerate better because it weighs about 700 to 1050 pounds less than the Maserati GranTurismo Convertible.

The Corvette is 1 foot, 4.4 inches shorter than the GranTurismo Convertible, making the Corvette easier to handle, maneuver and park in tight spaces.

The design of the Chevrolet Corvette amounts to more than styling. The Corvette has an aerodynamic coefficient of drag of .29 Cd. That is significantly lower than the GranTurismo Convertible (.33). A more efficient exterior helps the Corvette go faster and keeps the interior quieter. It also helps the Corvette get better fuel mileage.

Cargo Capacity

The Corvette Convertible has a much larger trunk than the GranTurismo Convertible (10 vs. 6.1 cubic feet).

With its convertible body style, valet key and remote trunk release lockout, the Corvette offers cargo security. The GranTurismo Convertible’s non-lockable remote release defeats cargo security.

Ergonomics

The Corvette Auto 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 GranTurismo Convertible doesn’t offer a remote starting system.

The Corvette’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 GranTurismo Convertible does not have an oil pressure gauge.

The Corvette offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The GranTurismo Convertible doesn’t offer a heads-up display.

Keyless Access standard on the Corvette allows you to unlock the driver’s door, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Maserati GranTurismo Convertible doesn’t offer an advanced key system.

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

Optional air-conditioned seats in the Corvette keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The GranTurismo Convertible doesn’t offer air-conditioned seats.

The Corvette’s standard steering wheel mounted cruise control is close at hand. The GranTurismo Convertible’s standard cruise control is on an over-crowded turn signal stalk.

Recommendations

J.D. Power and Associates rated the Corvette second among midsize premium sporty cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The GranTurismo Convertible isn’t in the top three.

The Corvette was chosen as one of Car and Driver’s “Top Ten” for 15 of the last 22 years. The GranTurismo Convertible has never been a Car and Driver “Top Ten” pick.

The Corvette was selected by Automobile Magazine as their 2014 Car of the Year. The GranTurismo Convertible has never been chosen.

A group of representative automotive journalists from North America selected the Corvette as the 2014 North American Car of the Year. The GranTurismo Convertible has never been chosen.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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