New 6.7-liter V8 generates 535 horsepower while Grand Sport X adds hybrid boost to 721 horsepower.
Chevrolet priced the 2027 Corvette Grand Sport at $88,495, slotting between the Stingray and Z06. The Grand Sport X commands $112,195. Both models reach dealers this summer.
The pricing creates a $32,000 gap below the Z06 while adding just $12,000 to the base Stingray cost. Chevrolet confirmed these variants close the C8 generation's nameplate expansion, according to the company's April 2024 product announcement. The strategy mirrors Porsche's 911 lineup segmentation but undercuts German pricing.
Power output spans 186-horsepower range across variants
The Grand Sport's new 6.7-liter V8 produces 535 horsepower and 520 lb-ft of torque. The Grand Sport X jumps to 721 horsepower through hybrid assistance borrowed from the discontinued E-Ray. That 186-horsepower difference costs $23,700 — calculating to $127 per additional horsepower. The base Stingray generates 490 horsepower, meaning the Grand Sport adds 45 horsepower for $12,000, or $267 per horsepower. The Z06's 670 horsepower commands $120,495, creating a 51-horsepower gap below the Grand Sport X despite the $8,300 price premium.
Positioning targets Porsche 911 customer migration
The Grand Sport X's 721 horsepower output matches BMW's electrified performance push in positioning American V8 power against German alternatives. A comparable Porsche 911 Turbo S generates 640 horsepower for $230,000 — over twice the Grand Sport X price. The Grand Sport adopts a grand touring character rather than the track-focused ZR1 approach. German manufacturers face similar positioning challenges as EU manufacturing policy shifts affect production costs. Chevrolet calculated this pricing to capture buyers stepping up from base models while avoiding Z06 overlap.
Final C8 nameplate confirms generation completion
Chevrolet's April 2024 product announcement explicitly stated the Grand Sport models represent "the last new nameplate for the 8th generation Corvette." The document outlined summer 2024 dealer arrivals but avoided production volume targets. General Motors discontinued the E-Ray hybrid to make room for Grand Sport X hybrid technology, according to the same announcement. The company confirmed C8 production continues beyond Grand Sport introduction but declined to specify C9 development timelines. This nameplate closure mirrors Honda's product cycle management in limiting variant proliferation before generational transitions.
Hybrid system sourcing raises parts availability questions
The Grand Sport X employs the same hybrid components that prompted E-Ray discontinuation, yet Chevrolet avoided explaining parts supply allocation between the models. The E-Ray's cancellation timing coincides exactly with Grand Sport X announcement, suggesting component constraints rather than market demand issues. Battery pack specifications remain undisclosed despite the 186-horsepower output difference. General Motors hasn't confirmed whether Grand Sport X production volumes will match previous E-Ray targets of 15,000 annual units. The company also declined to specify warranty coverage differences between naturally aspirated and hybrid powertrains.
The Grand Sport name returns after a five-year absence from Corvette lineups, last appearing in the C7 generation through 2019 model year. Summer deliveries begin with coupe variants, followed in autumn 2024. The complete Chevrolet model history and specifications are catalogued in the Global Auto Index manufacturer database.
