About the Infiniti Q50
Last updated Sep 29, 2025The new Infiniti Q50 is a Medium Luxury offered in a 4D Sedan body style. Available in Australia from $54,900 (MLRP, excl. on-roads) for the GT variant and topping out at $79,900 for the RED Sport.
There are 3 variants of the Q50 available in Australia and this generation went on sale in October of 2017.
Engine options include 3.5L multi-point injection (268kW/546Nm), 2.0L turbo petrol direct injection (155kW/350Nm) and 3.0L turbo petrol direct injection (224kW/400Nm). All variants feature 7-speed automatic transmission. Both four-wheel drive and rear-wheel drive configurations are available.
The new 2018 Q50 is offered with a 4 year, 100,000 km warranty.
Comparative Rating
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Towing & Off-Road Capability
2018 Infiniti Q50 Price
GT
| Configuration | Price From* |
|---|---|
| 2.0L, 7-speed auto, 4-door Sedan, Petrol, RWD | $54,900 |
| 2.0L, 7-speed auto, 4-door Sedan, Petrol, RWD | $56,890 |
S Premium
| Configuration | Price From* |
|---|---|
| 3.5L, 7-speed auto, 4-door Sedan, Petrol, 4x4 | $75,400 |
| 3.5L, 7-speed auto, 4-door Sedan, Petrol, RWD | $73,400 |
| 2.0L, 7-speed auto, 4-door Sedan, Petrol, RWD | $62,400 |
| 3.0L, 7-speed auto, 4-door Sedan, Petrol, RWD | $70,400 |
Red Sport
| Configuration | Price From* |
|---|---|
| 3.0L, 7-speed auto, 4-door Sedan, Petrol, RWD | $79,900 |
All Infiniti Q50 Pricing
2018 Infiniti Q50 Specs
See our comprehensive details for the Infiniti Q50
2018 Infiniti Q50 Gallery
CarExpert High Resolution Photos of the Infiniti Q50
2018 Infiniti Q50 Fuel Economy
There are 5 different fuel economy figures for the Infiniti Q50
The most fuel efficient Infiniti Q50 is the S Premium with a 7-speed Automatic which is powered by a 3.5L Multi-Point Injection and uses 6.8L of Unleaded per 100km on the combined cycle.
The Infiniti Q50 that uses the most amount of fuel is the Red Sport with a 7-speed Automatic which is powered by a 3.0L Turbo Petrol Direct Injection and uses 9.3L of Premium Unleaded per 100km on the combined rural and urban test cycle.
Below is a table of all the Infiniti Q50 variants and their fuel economy figures. Click below the table to see an expansion and additional details, including specific usage for city and highway driving.
| Infiniti Q50 | Fuel Type | Combined |
|---|---|---|
| 2.0L, 7-speed auto, 4-door Sedan, Petrol, RWD | Premium Unleaded | 7.3 L/100km |
Cost of ownership
What are the running and servicing costs of a Infiniti Q50?
You should service your Q50 at your authorised Infiniti dealer or service centre, however servicing it at third party mechanics that follow OEM servicing instructions should not impact the Q50's warranty.
2018 Infiniti Q50 Warranty
What is the warranty on a Infiniti Q50?
The Infiniti Q50 offers a 4 year 100,000 km limit warranty. This is separate to the warranty on offer under Australian Consumer Law which can be greater for certain parts based on what is deemed as a reasonable period of time.
Infiniti Q50 FAQs
The cheapest Infiniti Q50 is the GT that starts from $54,900.
The most expensive Infiniti Q50 is the Red Sport that starts from $79,900.
The best towing capacity of a Infiniti Q50 is 1500 kg offered by the following variants: GT, S Premium and Red Sport.
The largest Infiniti Q50 is the S Premium which measures 1820mm wide, 4800mm in length and sits 1445mm tall.
The most powerful Infiniti Q50 is the Red Sport which has 298kW of power from its 3.0L Turbo Petrol Direct Injection engine.
The Infiniti Q50 is built in Japan and shipped to Australia.
The heaviest Infiniti Q50 is the S Premium which weighs 2455 kg (kerb weight).
The Infiniti Q50 may use different fuel/energy types based on the variant which includes Unleaded or Premium Unleaded.