The Grand Sport trim has always been the sweet spot for Corvette buyers. It’s not just a badge; it’s a formula. Since its debut in 1963, that formula has evolved from pure race car to production brawler. The C8 version doubles down on this legacy. It takes the standard Stingray’s architecture and grafts on the wider stance and chassis upgrades found in the higher-tier Z06 models. But the 2027 2027 Chevrolet Corvette Grand Driven isn’t just about looks. It’s about torque, sound, and a new heart beating in the center of the car.
Inside the LS6 V-8 Engine
The biggest news is the engine. GM calls it the LS6. The name is a nod to history—specifically the 7.4-liter big block from the 1970s and the C5 Z06’s 5.7-liter small block. This new 6.7-liter unit (409 cubic inches) is a sixth-generation small-block.
Here are the numbers:
* Horsepower: 535 hp at 6,100 rpm
* Torque: 520 lb-ft at 4,600 rpm
Compared to the outgoing LT2 6.2-liter engine, you gain 40 horses and 50 lb-ft of torque. The peaks arrive lower in the rev range. That’s thanks to a massive 13.0:1 compression ratio—the highest ever in a Corvette. The old engine ran at 11.5:1.
Redline stays at 6,500 rpm. The performance exhaust option from previous models is gone. Now, every LS6 is identical in output.
The Sound of Muscle
Chevrolet introduced an active center-exit exhaust for $1,995. Four pipes stick out of the rear deck. It changes everything.
Start the engine. The sound is visceral. A thunderous growl erupts from behind the seats before settling into a lumpy idle. It recalls the C6 Z06’s 7.0-liter roar. It is deeper and meaner than the standard Stingray. Yet, it doesn’t demand a scene. There are four modes: Stealth, Tour, Sport, and Track.
“The throaty roar of Sport hits all the right notes without excessive droning.”
Stealth muffles the noise. Track opens it up fully. Sport sits in the middle. It’s the sweet spot for daily driving. No drone. Just presence.
Performance Estimates
The engine responds instantly to the throttle. Low-end torque is prodigious. High-RPM airflow keeps the thrust building to redline. We are not waiting for twin-turbos or hybrids to feel speed here.
With the eight-speed dual-clutch automatic and the Z06’s shorter 5.56:1 final drive ratio, the math looks good.
Estimated Performance:
* 0-60 mph: ~2.7 seconds
* Quarter-mile: ~11.0 seconds
These numbers are faster than the LT2 Stingray records we’ve logged. They are close to the 670-horsepower Z06. The Z06 hits 60 in 2.6 and runs 10.5 in the quarter-mile.
If you want even more power, the new 721-horsepower Grand Sport X (formerly the E-Ray) uses an AWD hybrid setup. It retains the LS6’s burly soundtrack. It’s a different beast, but for many, the standard GS is enough.
Chassis and Handling Dynamics
The C8 platform is stiff. It logs over 1.10g on the skidpad. Braking distance from 70 mph is roughly 135 feet. The chassis can handle more power than this new V8 produces.
The Grand Sport is essentially a slightly detuned Z06. But that’s not a bad thing. Steering is laser-focused. Brakes are strong. Chassis electronics are sophisticated. They help the driver find speed confidently.
Standard magnetorheological adaptive dampers provide excellent wheel control. They also handle bumps well. The body is 3.6 inches wider. It houses massive tires:
* Front: 275/30ZR20
* Rear: 345/25ZR21
You are looking at 20-inch fronts and 21-inch rears. The grip is substantial.
Which Packages Should You Pick?
Options pile up fast. It feels like building a Porsche 911.
The Z52 Sport Performance Package ($3,500)
Skip the standard all-season tires. Get this instead. You get:
* Stiffer suspension tuning
* Michelin Pilot Sport 4S summer tires
* Performance Traction Management (PTM)
* Upgraded Z06-spec brakes with iron rotors
The Z52 Track Performance Package ($20,695)
Take it to the next level. Adds:
* Model-specific suspension tuning
* Stickier Michelin Pilot Sport Cup 2 R tire
Available Extras
* Center-exit exhaust: $1,995
* Carbon-ceramic brakes: $6,000
* Carbon Fiber Aero package: $8,995 (adds Z06 wing, dive planes, and ground effects)
* Carbon-fiber wheels: $11,995 – $15,500
Design and Interior
How do you spot the GS? The engine note gives it away first. Beefy. Raw. Visually, look for the Grand Sport badges on the flanks. Twin hash marks sit atop the rear quarter-panels.
Forged-aluminum 10-spoke wheels are standard. But you can spec specific GS designs.
Our test car was the Launch Edition. That package cost $1,995 extras. The interior is all-blue leather with red contrast stitching. Embossed headrests. Unique badges on the wheel and center console. It’s a distinct look.
Price and Verdict
The starting MSRP is $88,495. Convertibles start at $95,495.
That is $15,000 more than a comparable Stingray. But it undercuts the Z06 significantly.
EPA fuel economy is 17 mpg combined. That’s one mile per gallon worse than the standard car. Top speed is claimed at 186 mph. The Stingray does 200 mph. Do these metrics matter? For most buyers, no.
You can buy a Stingray and save the money. You get the same new V8 architecture. But the Grand Sport offers the wide body, the suspension upgrades, the tires, and the specific tuning. It is a complete package.
The LS6 provides the sound. The chassis provides the grip. The result is a car that feels faster than the numbers suggest. Is it worth the extra cash over the Stingray? If you want the full C8 experience without the Z06 price tag, it is a killer combo. The question isn’t whether you should buy one. It’s whether you can resist the urge to mod it further once you get it home.
