Chevrolet Suburban GMTT1XX 6.2 V8 (420 Hp) AWD Automatic
Overall Rating
Chevrolet Suburban:
The Chevrolet Suburban is a series of SUVs built by Chevrolet since 1934. The longest-produced automobile nameplate in the world, the Suburban is currently in its twelfth generation, in production since the 2021 model year. Beginning life as one of the first metal-bodied station wagons, the Suburban is the progenitor of the modern full-size sport utility vehicle, combining a wagon-style body with the chassis and powertrain of a pickup truck. Alongside its Advance Design, Task Force, and C/K predecessors, the Chevrolet Silverado currently shares chassis and mechanical commonality with the Suburban and other trucks....(Read more on Wikipedia)
GMTT1XX Overview:
Chevrolet Suburban (GMTT1XX). With 624 Nm of torque, it offers ample pulling power. All‑wheel drive provides excellent grip, ideal for off‑road use. A sport utility vehicle offering higher ground clearance and versatile cargo space. With seating for 7, it’s perfect for larger families.
The Chevrolet Suburban GMTT1XX is primarily tested by North American safety organizations (NHTSA, IIHS) and typically performs well in those ratings, but has not been evaluated by Euro NCAP.
6.2 V8 (420 Hp) AWD Automatic Verdict:
Performance Verdict
The most powerful petrol option, delivering robust acceleration and superior capability for all driving conditions, including heavy loads.
Fuel Economy
The least fuel-efficient option among the petrol engines due to its size, power, and AWD, but offers unmatched performance.
Pros and Cons:
Pros:
- • Massive interior space for passengers and cargo
- • Strong towing capabilities across the engine lineup
- • Comfortable and refined ride quality
- • Choice of powerful V8 petrol or efficient diesel engines
- • Robust build quality and proven drivetrain
Cons:
- • Large exterior dimensions can make city driving and parking challenging
- • Fuel economy, especially for V8 petrol models, can be high
- • Higher trim levels can become very expensive
- • Interior materials, while durable, may not feel as premium as some rivals
Specifications:
Specifications are compared to those of the previous generation(GMTK2YC/G: 2018 - 2020).
| General: | |
|---|---|
| Brand: | Chevrolet |
| Model: | Suburban |
| Generation: | GMTT1XX |
| Modification (Engine): | 6.2 V8 (420 Hp) AWD Automatic |
| Start of production: | 2020 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | SUV |
| Seats: | 7 |
| Doors: | 5 |
| Engine: | |
|---|---|
| Engine systems: | Start & Stop System |
| Power: | 420 Hp @ 5600 rpm. Same horsepower |
| Torque: | 624 Nm @ 4100 rpm. |
| Engine Model/Code: | L87 More details about the engine L87 |
| Number of cylinders: | 8 |
| Engine configuration: | V-engine |
| Number of valves per cylinder: | 2 |
| Fuel injection system: | Direct injection |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | OHV, VVT Di |
| Engine oil capacity: | 7.6 l |
| Coolant: | 14.3 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 103.25 mm mm |
| Piston Stroke: | 92 mm mm |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Space: | |
|---|---|
| Trunk (boot) space - maximum: | 4097 l |
| Trunk (boot) space - minimum: | 1164 l |
| Size: | |
|---|---|
| Length: | 5732 mm mm [33mm more] |
| Width: | 2059 mm mm [15mm more] |
| Height: | 1923 mm mm [34mm more] |
| Wheelbase: | 3407 mm mm [105mm more] |
| Front track: | 1741 mm |
| Rear (Back) track: | 1734 mm |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4x4) |
| Number of gears | 10 |
| Transmission type | Automatic |
| Gearbox type | Hydra-Matic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Ventilated discs [Best for performance and cooling.] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 265/65 R18; 275/55 R20; 275/50 R22 |
| Wheel rims size | 18; 20; 22 |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |















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