The Karma Revero GT 1.5/28 kWh, launched in 2020, represents a significant evolution in the Revero line, building upon the foundation laid by the original Revero. Positioned as a luxury plug-in hybrid sedan, the GT aimed to deliver both high performance and extended electric range, competing with vehicles like the Porsche Panamera E-Hybrid and Tesla Model S. The “1.5” designation refers to the 1.5-liter turbocharged three-cylinder engine, while “28 kWh” denotes the capacity of the battery pack. This variant was the primary offering for the Revero GT, establishing the model’s core identity as a sophisticated, technologically advanced grand tourer. It utilizes a unique series hybrid powertrain configuration, differentiating it from many competitors.
Technical Specifications
| Brand | Karma |
| Model | Revero |
| Generation | Revero |
| Type | GT 1.5/28 kWh (536 Hp) Plug-in Hybrid |
| Start of production | 2020 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 4 |
| Doors | 4 |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 201 km/h (124.9 mph) |
| Weight-to-power ratio | 4.3 kg/Hp, 233.4 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 324.9 Nm/tonne |
| Gross battery capacity | 28 kWh |
| Battery voltage | 358 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | In the central tunnel |
| All-electric range | 129 km (80.16 mi) |
| System power | 536 Hp |
| System torque | 746 Nm (550.22 lb.-ft.) |
| Power | 228 Hp |
| Torque | 320 Nm (236.02 lb.-ft.) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B38K15T0 |
| Engine displacement | 1499 cm3 (91.47 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.25 l (4.49 US qt | 3.74 UK qt) |
| Kerb Weight | 2296 kg (5061.81 lbs.) |
| Max. weight | 2688 kg (5926.03 lbs.) |
| Max load | 392 kg (864.21 lbs.) |
| Trunk (boot) space – minimum | 182 l (6.43 cu. ft.) |
| Fuel tank capacity | 38.8 l (10.25 US gal | 8.53 UK gal) |
| Length | 5065 mm (199.41 in.) |
| Width including mirrors | 2161 mm (85.08 in.) |
| Height | 1332 mm (52.44 in.) |
| Wheelbase | 3160 mm (124.41 in.) |
| Ride height (ground clearance) | 138 mm (5.43 in.) |
| Drag coefficient (Cd) | 0.35 |
| Minimum turning circle (turning diameter) | 12.3 m (40.35 ft.) |
| Drivetrain Architecture | Two electric motors drive the rear wheels. The Internal combustion engine (ICE) drives the generator only, with no mechanical connection to the drive. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 1 gears, automatic transmission |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Double wishbone, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Front wheel tires | 245/40 R21; 255/40 R21; 255/35 R22 |
| Rear wheel tires | 265/40 R21; 285/35 R22 |
| Front wheel rims | 21; 22 |
| Rear wheel rims | 21; 22 |
Powertrain & Engine Architecture
The Revero GT’s powertrain is its defining feature. It employs a series hybrid setup, meaning the 1.5-liter turbocharged three-cylinder engine (BMW B38K15T0) doesn’t directly drive the wheels. Instead, it functions solely as a generator, producing electricity to power the electric motors. Two electric motors, located on the rear axle, provide all-wheel drive capability. This configuration allows for a mechanically simpler drivetrain compared to traditional parallel hybrids. The engine itself boasts direct injection and a twin-scroll turbocharger, producing 228 horsepower and 236 lb-ft of torque. The 28 kWh lithium-ion battery pack, positioned in the central tunnel, provides an all-electric range of approximately 80 miles. The single-speed automatic transmission delivers seamless power to the rear wheels. The battery can be charged via a standard J1772 charging port.
Driving Characteristics
The Revero GT delivers a unique driving experience. In electric mode, it offers near-silent acceleration and responsive performance. The rear-wheel-drive configuration provides a balanced feel, and the instant torque from the electric motors results in brisk acceleration. When the engine engages, it does so smoothly and relatively quietly, primarily to extend the range. The single-speed transmission means there are no gear changes, contributing to a refined driving experience. Compared to the original Revero, the GT offered improved electric range and a more refined powertrain calibration. While not as overtly sporty as some competitors, the Revero GT prioritizes comfort and effortless performance.
Equipment & Trim Levels
The Revero GT came standard with a high level of equipment, reflecting its luxury positioning. Standard features included leather upholstery, a premium sound system, a large touchscreen infotainment system, and advanced driver-assistance systems such as adaptive cruise control and lane-keeping assist. Optional extras included upgraded leather options, a panoramic sunroof, and various cosmetic enhancements. The interior design emphasized a minimalist aesthetic with high-quality materials and meticulous craftsmanship. The dashboard layout was clean and modern, with a focus on intuitive controls.
Chassis & Braking
The Revero GT features a double-wishbone suspension system at both the front and rear, providing a comfortable ride and good handling characteristics. Transverse stabilizer bars help to minimize body roll during cornering. Ventilated disc brakes are used on all four wheels, providing ample stopping power. The car’s relatively heavy weight (over 5,000 lbs) necessitates a robust braking system. ABS (Anti-lock Braking System) is standard, enhancing safety and control in emergency braking situations.
Market Reception & Comparison
The Karma Revero GT received generally positive reviews from automotive critics. Praise was directed towards its unique powertrain, luxurious interior, and comfortable ride. However, some critics noted its high price tag and relatively limited brand recognition. Compared to other plug-in hybrid sedans, the Revero GT offered a longer all-electric range than some competitors, but its price positioned it above many mainstream offerings. Reliability reports were limited due to the relatively low production volume. Fuel economy, when operating in hybrid mode, was competitive with other luxury sedans.
Legacy
The Karma Revero GT represents a bold attempt to establish a new luxury automotive brand. While production numbers were modest, the GT demonstrated Karma’s commitment to innovative powertrain technology and sustainable mobility. On the used car market, the Revero GT holds its value reasonably well, appealing to buyers seeking a unique and technologically advanced luxury sedan. The long-term reliability of the powertrain remains a subject of ongoing evaluation, but early reports suggest that the BMW-sourced engine and electric motors are generally durable. The Revero GT paved the way for future Karma models and helped to raise awareness of the brand’s vision for electric and hybrid vehicles.
