The Karlmann King Stealth 6.8 V10 (367 Hp) 4×4 Automatic, launched in 2018, represents a unique and highly specialized entry into the ultra-luxury SUV segment. Built by Karlmann, a Chinese manufacturer specializing in bespoke, armored vehicles, the Stealth is characterized by its aggressively angular design and substantial presence. It’s not intended for mass production, but rather as a statement piece for discerning clients seeking exclusivity and a high degree of personalization. The vehicle is based on a heavily modified chassis and body, offering a blend of off-road capability and opulent interior appointments. The 6.8 V10 variant, detailed here, sits at the top of the King Stealth lineup, offering the highest performance and most comprehensive feature set.
Technical Specifications
| Brand | Karlmann King |
| Model | Stealth |
| Generation | Stealth |
| Type (Engine) | 6.8 V10 (367 Hp) 4×4 Automatic |
| Start of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 4-7 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 140 km/h (86.99 mph) |
| Weight-to-power ratio | 12.3 kg/Hp, 81.6 Hp/tonne |
| Weight-to-torque ratio | 7.3 kg/Nm, 137.8 Nm/tonne |
| Power | 367 Hp |
| Power per litre | 54 Hp/l |
| Torque | 620 Nm (457.29 lb.-ft.) |
| Engine Model/Code | Triton |
| Engine displacement | 6800 cm3 (414.96 cu. in.) |
| Number of cylinders | 10 |
| Engine configuration | V-engine |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Kerb Weight | 4500-6000 kg (9920.8 – 13227.74 lbs.) |
| Fuel tank capacity | 152 l (40.15 US gal | 33.44 UK gal) |
| Length | 5990 mm (235.83 in.) |
| Width | 2480 mm (97.64 in.) |
| Height | 2480 mm (97.64 in.) |
| Wheelbase | 3691 mm (145.31 in.) |
| Front track | 2110 mm (83.07 in.) |
| Rear (Back) track | 2110 mm (83.07 in.) |
| Ride height (ground clearance) | 300 mm (11.81 in.) |
| Approach angle | 30° |
| Departure angle | 30° |
| Ramp-over (brakeover) angle | 30° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Wishbone |
| Rear suspension | Wishbone |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Wheel rims size | 20 |
Powertrain & Engine Architecture
The heart of the Karlmann King Stealth 6.8 V10 is a naturally aspirated 6.8-liter Triton V10 engine. This engine, derived from Ford’s modular V10 architecture (often found in heavy-duty trucks like the Ford Excursion), has been extensively modified by Karlmann. While the base engine is known for its robust construction, the Stealth’s version likely incorporates upgrades to cooling and lubrication systems to cope with the vehicle’s substantial weight and potential for demanding operation. The engine produces 367 horsepower and a substantial 620 Nm (457.29 lb.-ft.) of torque. The engine utilizes a multi-point fuel injection system, and the valvetrain features three valves per cylinder (two intake, one exhaust) to optimize breathing and power delivery. The engine is mated to a six-speed automatic transmission, chosen for its durability and ability to handle the high torque output. The transmission is tuned for smooth shifts, prioritizing comfort over outright performance, given the vehicle’s intended use as a luxury cruiser.
Driving Characteristics
Given its considerable weight (4500-6000 kg), the Karlmann King Stealth 6.8 V10 is not designed for sporty handling. Instead, the focus is on providing a comfortable and commanding driving experience. The automatic transmission, while offering six gears, is geared more towards effortless cruising than rapid acceleration. The 0-60 mph time is estimated to be in the 8-9 second range, which is respectable for a vehicle of this size and weight, but not particularly quick. The all-wheel-drive system provides enhanced traction, particularly useful on loose surfaces, and contributes to a feeling of stability. The hydraulic power steering offers a weighty feel, providing a sense of connection to the road, but requires more effort than modern electric systems. The suspension, utilizing a wishbone setup at both the front and rear, is tuned for comfort, absorbing bumps and irregularities effectively. However, body roll is noticeable during cornering due to the high center of gravity.
Equipment & Trim Levels
The Karlmann King Stealth is largely defined by its bespoke nature, meaning trim levels are less defined than in mainstream production vehicles. However, the 6.8 V10 variant represents the highest level of specification. Standard features include a lavishly appointed interior with premium leather upholstery, wood trim, and extensive soundproofing. The vehicle offers seating for up to seven passengers, with configurable seating arrangements. A high-end infotainment system with a large touchscreen display is standard, along with advanced climate control and a comprehensive suite of safety features, including ABS. Customers can specify a wide range of optional extras, including ballistic armor, upgraded audio systems, bespoke interior finishes, and customized exterior paint schemes. The level of personalization is a key selling point for the King Stealth.
Chassis & Braking
The chassis of the Karlmann King Stealth is a heavily modified ladder-frame construction, providing a robust foundation for the vehicle’s weight and intended use. The suspension system utilizes wishbone setups at both the front and rear, with heavy-duty springs and dampers to manage the vehicle’s mass. Braking is provided by ventilated discs at all four corners, coupled with an ABS system. Given the vehicle’s weight, braking performance is adequate but not exceptional. The large tires and all-wheel-drive system contribute to improved stopping distances. The ride height of 300 mm (11.81 in.) provides ample ground clearance for off-road excursions, and the approach, departure, and ramp-over angles of 30 degrees each enhance its all-terrain capability.
Market Reception & Comparison
The Karlmann King Stealth occupies a unique niche in the automotive market, making direct comparisons difficult. It doesn’t compete with mainstream luxury SUVs like the Range Rover or Bentley Bentayga, but rather caters to a very specific clientele seeking extreme exclusivity and a high degree of customization. Critics have generally praised the vehicle’s bold design and opulent interior, but have also noted its substantial weight and relatively modest performance. Fuel economy is unsurprisingly poor, given the large displacement V10 engine and considerable weight. Reliability is difficult to assess given the limited production numbers and bespoke nature of the vehicle, but the use of a proven Ford V10 engine provides a degree of confidence. Compared to other armored vehicles, the King Stealth offers a higher level of luxury and refinement.
Legacy
The Karlmann King Stealth 6.8 V10 is likely to remain a rare and collectible vehicle. Its limited production run and unique design ensure its status as a niche automotive icon. The longevity of the Ford Triton V10 engine, when properly maintained, suggests that the powertrain should prove relatively reliable over the long term. However, the complexity of the vehicle’s bespoke systems and the potential for specialized parts requirements may present challenges for future owners. In the used car market, the King Stealth will likely appeal to collectors and enthusiasts seeking a statement vehicle that stands out from the crowd. Its value will likely be driven by its rarity, condition, and the level of customization it features.
