The Chevrolet Corvette Convertible (C7) ZR1, produced for the 2018 and 2019 model years, represents the pinnacle of performance for the seventh-generation Corvette. Positioned as the highest-performance variant of the C7 convertible lineup, the ZR1 aimed to deliver uncompromising power and track capability while retaining the open-air experience of a convertible. It built upon the already potent C7 Stingray and Grand Sport models, offering a substantial increase in horsepower and aerodynamic enhancements. The C7 generation, spanning from 2014 to 2019, marked a significant shift for the Corvette, moving towards a more refined and technologically advanced platform.
Technical Specifications
| Brand | Chevrolet |
| Model | Corvette |
| Generation | Corvette Convertible (C7) |
| Type (Engine) | ZR1 6.2 V8 (755 Hp) |
| Start of production | 2018 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Fuel consumption (economy) – urban | 18 l/100 km (13.1 US mpg, 15.7 UK mpg, 5.6 km/l) |
| Fuel consumption (economy) – extra urban | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Power | 755 Hp @ 6300 rpm |
| Power per litre | 122.5 Hp/l |
| Torque | 969 Nm @ 4400 rpm (714.7 lb.-ft. @ 4400 rpm) |
| Maximum engine speed | 6500 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | LT5 |
| Engine displacement | 6162 cm3 (376.03 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.25 mm (4.06 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection and Multi-port manifold injection |
| Engine aspiration | Supercharger, Intercooler |
| Valvetrain | VVT |
| Engine oil capacity | 9.3 l (9.83 US qt | 8.18 UK qt) |
| Coolant | 13.1 l (13.84 US qt | 11.53 UK qt) |
| Trunk (boot) space – maximum | 283 l (9.99 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4567 mm (179.8 in.) |
| Width | 1966 mm (77.4 in.) |
| Height | 1237 mm (48.7 in.) |
| Wheelbase | 2710 mm (106.69 in.) |
| Front track | 1636 mm (64.41 in.) |
| Rear (Back) track | 1615 mm (63.58 in.) |
| Minimum turning circle (turning diameter) | 12.2 m (40.03 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs, 394 mm |
| Rear brakes | Ventilated discs, 388 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | Front wheel tires: 285/30 ZR19 Rear wheel tires: 335/25 ZR20 |
| Wheel rims size | Front wheel rims: 10J x 19 Rear wheel rims: 12J x 20 |
Powertrain & Engine Architecture
The heart of the C7 ZR1 is the LT5 6.2-liter supercharged V8 engine. This engine represents a significant departure from the standard C7 Corvette engines, featuring a 2.65-liter Eaton supercharger with four-lobe rotors. The LT5 utilizes a combination of direct injection and multi-port fuel injection to optimize combustion efficiency and power output. The engine also incorporates Active Fuel Management (AFM), which allows it to deactivate four cylinders during light-load cruising to improve fuel economy. Valvetrain features include variable valve timing (VVT) for enhanced performance across the rev range. The ZR1 exclusively came with a seven-speed manual transmission, optimized for the engine’s high output and providing precise gear changes. The engine’s longitudinal front-mid engine layout contributes to a balanced weight distribution.
Driving Characteristics
The ZR1’s driving experience is dominated by its immense power and responsive handling. The supercharged engine delivers a surge of torque throughout the rev range, providing exhilarating acceleration. The seven-speed manual transmission, while requiring skill to master, allows for complete control over the powertrain. Compared to the standard C7 Stingray or even the Grand Sport, the ZR1 offers a significantly more aggressive and focused driving experience. The increased power necessitates careful throttle control, especially on public roads. The ZR1’s suspension, tuned for track performance, provides exceptional grip and stability, but may be firmer than some drivers prefer for everyday commuting. The gear ratios are optimized for both rapid acceleration and high-speed stability.
Equipment & Trim Levels
The C7 ZR1 Convertible came relatively well-equipped as standard, focusing on performance-oriented features. Standard interior features included leather-trimmed seats, a premium audio system, and a performance data recorder. Optional extras included carbon fiber interior trim, heated and ventilated seats, and a heads-up display. Exterior options included various wheel finishes and paint colors. The ZR1’s interior design was largely consistent with other C7 Corvettes, but featured unique badging and trim elements to denote its high-performance status. The convertible top was power-operated and offered a relatively quiet cabin experience at cruising speeds.
Chassis & Braking
The C7 ZR1 utilizes a lightweight aluminum chassis, contributing to its impressive power-to-weight ratio. The suspension system features Magnetic Ride Control, which uses magnetically-controlled dampers to adjust damping rates in real-time, optimizing ride comfort and handling. The ZR1 is equipped with Brembo brakes, featuring large ventilated discs (394mm front, 388mm rear) and multi-piston calipers, providing exceptional stopping power. An advanced ABS system with selectable modes further enhances braking performance. The ZR1 also benefits from a wider front fascia and larger rear spoiler, generating significant downforce at high speeds. The standard tire size is 285/30 ZR19 for the front and 335/25 ZR20 for the rear, providing ample grip.
Market Reception & Comparison
The C7 ZR1 was widely praised by automotive critics for its exceptional performance and track capability. It was often compared favorably to other high-performance sports cars, such as the Porsche 911 Turbo and the Dodge Viper. While fuel economy was not a primary concern for ZR1 buyers, the car’s combined fuel economy of around 16 mpg was considered reasonable for its performance level. Reliability reports have been generally positive, although the ZR1’s complex powertrain and high-performance components require diligent maintenance. Compared to the C7 Stingray and Grand Sport, the ZR1 commanded a significant price premium, reflecting its increased performance and exclusivity.
Legacy
The C7 ZR1 represents a landmark achievement in Corvette engineering, showcasing Chevrolet’s ability to compete with the world’s best performance cars. The LT5 engine, with its supercharged power and advanced technologies, has become a highly sought-after powerplant among Corvette enthusiasts. On the used car market, the C7 ZR1 Convertible holds its value well, attracting buyers who prioritize performance and exclusivity. The ZR1’s robust powertrain and well-engineered chassis suggest that it will remain a desirable and capable sports car for years to come, provided it receives proper maintenance and care. Its impact on the Corvette lineage is significant, paving the way for the even more advanced C8 generation.
