This page carries the published specifications for the 2027 Chevrolet Corvette Grand Sport: engine output, exterior dimensions, interior and cargo capacity, wheels, tires and brakes, the equipment grid by model level, and the warranty terms. Every figure is sourced and dated. For the car in plain language, start with the Grand Sport overview; for what each model level includes, see the trims page.

Engine Specifications

One engine is offered, on every model level and both body styles.

6.7L LS6 V8

The LS6 is a naturally aspirated 6.7L V8 displacing 409 cubic inches, the first of Chevrolet's sixth-generation small-block family. It runs direct and port injection with Active Fuel Management and a 13.0:1 compression ratio, the highest of any Corvette V8. The engine is built at Flint Engine Operations in Michigan and the car is assembled at Bowling Green, Kentucky.

Engine specification	2027 Corvette Grand Sport
Configuration	6.7L LS6 naturally aspirated V8, 409 cu in
Horsepower	535 hp
Torque	520 lb-ft
Compression ratio	13.0:1
Fuel delivery	Direct and port injection with Active Fuel Management
Transmission	8-speed dual-clutch automatic, rear transaxle
Drivetrain	Rear-wheel drive
0-60 mph	2.75 sec with available equipment
Quarter mile	10.95 sec at 124 mph with available equipment

Exterior Dimensions

The Grand Sport uses the wide body that debuted on the Z06, not the narrower Stingray shell. That is a 3.6-inch difference in width and it is the single dimension most likely to matter in an older garage or a downtown parking deck. It is the figure worth measuring against before you buy, whether the car lives in a newer Rogers build or an older Fayetteville or Siloam Springs garage.

Exterior dimension	Figure	Basis
Width	79.7 in	Excludes mirrors; the Z06-derived wide body
Height	48.6 in	Shared across the C8 generation
Wheelbase	107.0 in	Chevrolet's published figure for the Coupe 1LT
Overall length	184.58 in	Coupe
Curb weight	3,520 pounds	Base curb weight, Coupe 1LT

Aerodynamics are structural rather than bolt-on: the wide-body chassis, an integrated rear spoiler and wide side air inlets are standard. The Carbon Fiber Aero Package, which adds a high wing, dive planes, rockers and a front splitter, is available and is included with the Z52 Track Performance Package.

Interior Space and Cargo Volume

The Grand Sport seats two, and its luggage space is split between a front trunk and a rear trunk rather than pooled behind a hatch.

Capacity	Figure	Note
Seating capacity	2	Two-seat, mid-engine layout
Cargo volume	12.6 cu ft	Front and rear trunks combined
Fuel tank	18.5 gal	The long-standing C8 tank

Front-row dimension	Figure
Head room	37.90 in
Leg room	42.80 in
Shoulder room	54.4 in

The coupe's removable roof panel stows in the rear trunk, so an open-top day and a fully loaded car are alternatives rather than a pair. At 42.8 inches of front leg room this is a roomier cabin than the low roofline suggests, which is the thing tall drivers most often get wrong about a Corvette before they sit in one.

Wheels, Tires and Brakes

Component	Standard	Available
Wheels	20-inch front, 21-inch rear 10-spoke forged aluminum in Pearl Nickel	Gloss Black and Bright Polished, same size and 10-spoke design
Tires	Michelin Pilot Sport All Season 4	Michelin Pilot Sport Cup 2 R with the Z52 Track Performance Package
Brakes	eBoost-assisted Brembo discs, 6-piston front and 4-piston rear monobloc	Carbon-ceramic with the Z52 Track Performance Package
Suspension	Magnetic Selective Ride Control	Standard equipment, no upgrade required

The all-season tire as standard equipment is the specification that separates this car from the track Corvettes, and it is why a Grand Sport is a realistic proposition on a 40-degree February morning on I-49. It is also the reason the numbers on this page translate the way they do in Rogers and Springdale: the same car that runs a 10.95-second quarter mile will take the Bella Vista Bypass to work without a tire change.

Fuel Economy and Fuel System

The Grand Sport carries an 18.5-gallon fuel tank, and its Active Fuel Management system can deactivate cylinders under light load, which is the hardware that shapes highway consumption on a long I-49 run.

Key Features by Trim

Decision feature	1LT	2LT	3LT
Bose 10-speaker audio	S	not std	not std
Bose Performance Series 14-speaker audio	not std	S	S
Seat material, standard	GT1, Mulan leather	GT1, Mulan leather	GT2, Napa leather
Heated and ventilated seats	not std	S	S
Head-up display	not std	S	S
Wireless phone projection and charging	S	S	S
HD Rear Vision Camera and Rear Camera Mirror	S	S	S
Rear Cross Traffic and Side Blind Zone Alert	not std	S	S

Legend: S = standard, "not std" = not standard equipment at that model level. The full per-model-level breakdown, including packages and step-up pricing, is on the trims page.

Safety and Compliance

Automatic Emergency Braking, Forward Collision Alert, Rear Park Assist and the HD Rear Vision Camera are standard across the Corvette line. On the Grand Sport, the rear camera and Rear Camera Mirror are standard from the 1LT, and Rear Cross Traffic Alert with Side Blind Zone Alert become standard at the 2LT.

Automatic Emergency Braking, Forward Collision Alert, Rear Park Assist and the HD Rear Vision Camera with Rear Camera Mirror are standard from the 1LT, and Rear Cross Traffic Alert and Side Blind Zone Alert are standard from the 2LT.

Warranty Coverage

Coverage	Term
Bumper-to-bumper, basic	3 years or 36,000 miles, whichever comes first
Powertrain	5 years or 60,000 miles, whichever comes first
Rust-through	6 years or 100,000 miles
Roadside assistance	Term and duration are set by your own Roadside Assistance plan

Service intervals, the GM Oil Life System and what ownership actually costs are covered on the Grand Sport maintenance page. Prior-year Corvette warranty and service coverage is on the 2026 Corvette maintenance guide.

What These 2027 Grand Sport Numbers Mean in Practice

The number	What it means when you own one
79.7 in wide, excluding mirrors	A standard single garage bay is typically 9 to 10 feet of clear opening, so the car fits, but door clearance on both sides is the thing to measure before you buy, not after
48.6 in tall	Roughly hip height on most adults. Sight lines in traffic are low, which is exactly why the 2LT's blind-zone alerts are worth the step for a daily driver
12.6 cu ft, two trunks	Two soft weekend bags, split front and rear. Enough for a weekend at Devil's Den State Park or a flight out of Northwest Arkansas National Airport, not enough for hard-sided luggage for two
18.5-gallon tank	Comfortably more range than a day of two-lane driving through the hills west of Centerton and back
All-season tires as standard	The car is usable across an Arkansas winter, which a Cup-tire Corvette is not. Ice and freezing rain are still a stay-home call in a rear-drive car

Specifications answer the question on paper; the garage-door measurement and the seat position answer it properly. Bring a tape measure and thirty minutes. We are at 2700 SE Moberly Ln, a straight run up I-49 from Springdale, Rogers and Centerton.

See Grand Sport inventory or compare it against Grand Sport X stock. Call (479) 319-2494 or book a test drive. Prior-year figures for the rest of the range are on the 2026 Corvette specs and dimensions page.

2027 Corvette Grand Sport Specifications FAQs

How wide is the 2027 Corvette Grand Sport?

79.7 inches, excluding mirrors. That is the Z06-derived wide body, 3.6 inches wider than the narrow-body Corvette Stingray.

How much cargo space does the Corvette Grand Sport have?

12.6 cubic feet, combining the front trunk and the rear trunk. The coupe's removable roof panel stows in the rear trunk when it is off the car.

What is the Corvette Grand Sport's fuel tank capacity?

18.5 gallons, the long-standing capacity for this generation of Corvette.

What is the 2027 Corvette Grand Sport's MPG?

The EPA has not issued a rating for any 2027 Corvette. The official figures will publish at fueleconomy.gov when they are certified.

How much does a 2027 Corvette Grand Sport weigh?

3,520 pounds base curb weight for the Coupe 1LT. Options and body style move it, so the figure for a specific build appears on that vehicle's own documentation, which we can pull for any car on the lot.

What size wheels does the Grand Sport use?

20-inch front and 21-inch rear 10-spoke forged aluminum wheels. Pearl Nickel is standard, with Gloss Black and Bright Polished finishes available in the same size and design.

Explore the Corvette Grand Sport