Infiniti QX50 J55
The world's first production variable compression ratio engine.
- Power
- 268 bhp
- 0–60 mph
- 6.7 s
- Top speed
- 143 mph
About the Infiniti QX50 J55
The second-generation Infiniti QX50 (J55) marked a radical departure from its rear-drive predecessor, moving to a front-biased platform to maximise interior space. Its defining feature is the KR20DDET engine, which uses a multi-link system to continuously vary the piston reach, adjusting the compression ratio between 8:1 and 14:1. This technology aims to provide the performance of a larger V6 with the efficiency of a four-cylinder. While the interior is highly praised for its premium materials and sliding rear seats, the driving experience is often noted for the CVT's tendency to mask the engine's innovative character.
Infiniti QX50 J55 specs
The Infiniti QX50 J55 produces 268 bhp (200 kW) and 380 Nm (280 lb-ft) of torque. It reaches 60 mph in 6.7 seconds and has a top speed of 143 mph (230 km/h).
| Make | Infiniti |
|---|---|
| Model | QX50 |
| Generation | J55 |
| Trim | 2.0t |
| Years | 2017–2025 |
| Type | SUV |
| Body style | SUV |
| Country | Japan |
| Original price | About $37,000 when new |
| Engine | 2.0-litre VC-Turbo inline-4 |
|---|---|
| Displacement | 1,997 cc (2.0 litres) |
| Induction | Turbocharged |
| Power | 268 bhp (200 kW) at 5,600 rpm |
| Torque | 380 Nm (280 lb-ft) |
| Redline | 6,000 rpm |
| 0–60 mph | 6.7 s |
| Top speed | 143 mph (230 km/h) |
| Transmission | Xtronic continuously variable transmission |
| Drivetrain | Front-wheel drive |
| Weight | 1,736 kg (3,827 lb) |
| Power-to-weight | 154 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is an Infiniti QX50 J55 worth?
Its original price when new was about $37,000.
Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. How values are estimated
Infiniti QX50 J55 rarity in CarSpot
The Infiniti QX50 J55 is a Common card in CarSpot, with a rarity score of 14 out of 100. Everyday cars you can spot on almost any street. A Common card is worth 10 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Infiniti QX50 J55 fun facts
- The VC-Turbo engine took over 20 years to develop, with Infiniti testing more than 100 prototypes before the J55 QX50's launch.
- Despite being a Japanese brand, the J55 QX50 was the first vehicle to be produced at the COMPAS plant in Mexico, a joint venture between Nissan and Daimler.
- The engine's variable compression system allows it to switch between the Atkinson cycle for efficiency and the regular combustion cycle for power.
