Tahoe K2XX vs QX56 / QX80 Z62: which is better?
Chevrolet Tahoe K2XX (2014–2020) vs Infiniti QX56 / QX80 Z62 (2010–present): specs, fuel economy, tax and common problems.
Chevrolet Tahoe K2XX
Infiniti QX56 / QX80 Z62Specifications
| Chevrolet Tahoe K2XX | Infiniti QX56 / QX80 Z62 | |
|---|---|---|
| Production years | 2014–2020 | 2010–present |
| Body | SUV | SUV |
| Fuel | petrol | petrol |
| Engines | 6.2 V8 | 5.6 V8 |
| Power, up to | 409 hp | 405 hp |
| Torque, up to | 623 Nm | 560 Nm |
| Gearbox | automatic | automatic |
| Drive | all-wheel drive | all-wheel drive |
| Length | 5 181 mm | 5 290 mm |
| Width | 2 045 mm | 2 030 mm |
| Height | 1 890 mm | 1 925 mm |
| Wheelbase | 2 946 mm | 3 075 mm |
| Fuel tank | 98 L | 100 L |
| KZ tax 2026 (car under 10 years) | ≈ 521 425 ₸ | ≈ 517 225 ₸ |
The better value is highlighted in green.
Pros, cons and common problems
Chevrolet Tahoe K2XX
Pros
- Powerful versions: up to 409 hp
- All-wheel-drive versions available
- Conventional automatic, no robotized gearbox or CVT
- Large tank: 98 L
Cons
- GM 6T30/6T40/6T45 etc. gearbox: 3-5-R clutch pack wave spring failure (6T40/6T45)
Gearbox (GM 6T30/6T40/6T45, etc.): broken wave spring in the 3-5-R clutch pack (6T40/6T45); jerks when the valve body wears.
Infiniti QX56 / QX80 Z62
Pros
- Gearbox Jatco RE (Nissan/Infiniti automatic): generally reliable
- Powerful versions: up to 405 hp
- All-wheel-drive versions available
- Large fuel tank: 100 L
Cons
- Engine Nissan VK56 (5.6 V8): catalytic converters break down and debris gets into the cylinders
- Gearbox Jatco RE (Nissan/Infiniti automatic): at high mileage, shift shocks and valve body wear
Engine (Nissan VK56 (5.6 V8)): catalytic converter breakdown with debris entering the cylinders; oil leaks at high mileage.
Gearbox (Jatco RE (Nissan/Infiniti automatic)): generally reliable; at high mileage — shocks and valve body wear.
Which one to choose
- Tahoe K2XX — if you care more about: power, torque.
- QX56 / QX80 Z62 — if you care more about: wheelbase, fuel tank, kz tax 2026.
The condition of a specific car matters more than the model: check the service history and get the engine and gearbox inspected before buying.
FAQ
Which is more powerful: Tahoe K2XX or QX56 / QX80 Z62?
Tahoe K2XX: up to 409 hp, QX56 / QX80 Z62: up to 405 hp.
What is the vehicle tax in Kazakhstan?
For 2026, for a car under 10 years old: Tahoe K2XX — about 521 425 ₸, QX56 / QX80 Z62 — about 517 225 ₸ (base engine). A 0.7 factor applies to cars aged 10–20 years and 0.5 to cars over 20.