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Infiniti M IV (Y51) M30d V6 (238 Hp) Automatic
Overall Rating
Infiniti M:
The Infiniti M is a line of mid-size luxury cars from the Infiniti luxury division of Nissan. From 2013 on it has been marketed as the Infiniti Q70, reflecting the company's later naming formula.
The first iteration was the M30 Coupé/Convertible, rebadged variants of the JDM Nissan Leopard. After a hiatus, the M nameplate was used for Infiniti's short-lived mid-luxury M45 sedan, a rebadged version of the Japanese-spec Nissan Gloria and Infiniti's subsequent flagship M35/45 and M37/56/35h/30d, based on the JDM Nissan Fuga....(Read more on Wikipedia)
IV (Y51) Overview:
Infiniti M (IV (Y51)). With 550 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~10.3 l/100km). With a weight of 1845 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is good (0–100 km/h in 6.9 s). The top speed reaches 249 km/h. A four-door car with a separate trunk, ideal for families and daily commuting. Seating for 5 makes it ideal for daily use.
M30d V6 (238 Hp) Automatic Verdict:
Performance Verdict
Offers robust torque and decent acceleration for a diesel, providing a strong pull from low RPMs suitable for daily driving and overtaking.
Fuel Economy
The most fuel-efficient option in the lineup, making it ideal for long-distance commuters and those seeking lower running costs without sacrificing luxury.
Pros and Cons:
Pros:
- • Powerful and refined engine options, especially the V8
- • Luxurious and well-appointed interior with quality materials
- • Distinctive styling that stands out from German rivals
- • Comfortable ride quality, particularly on long journeys
- • Strong safety ratings from US testing agencies
Cons:
- • Fuel economy can be poor, especially with V8 models
- • Infotainment system can feel dated compared to competitors
- • Rear seat space is adequate but not class-leading
- • Resale value typically lags behind German luxury brands
- • Limited brand recognition in some markets
Specifications:
Specifications are compared to those of the previous generation(III (Y50): 2008 - 2010).
| General: | |
|---|---|
| Brand: | Infiniti |
| Model: | M |
| Generation: | IV (Y51) |
| Modification (Engine): | M30d V6 (238 Hp) Automatic |
| Start of production: | 2010 |
| End of production: | 2014 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Sedan |
| Seats: | 5 |
| Doors: | 4 |
| Engine: | |
|---|---|
| Power: | 238 Hp @ 3750 rpm. Same horsepower |
| Power per litre: | 79.5 Hp/l [10mm more] |
| Torque: | 550 Nm @ 1750-2500 rpm. |
| Engine Model/Code: | V9X More details about the engine V9X |
| Engine displacement: | 2993 |
| Number of cylinders: | 6 |
| Engine configuration: | V-engine |
| Number of valves per cylinder: | 4 |
| Fuel injection system: | Diesel Commonrail |
| Engine aspiration: | Turbocharger, Intercooler |
| Valvetrain: | DOHC |
| Engine oil capacity: | 5.3 l |
| Coolant: | 12.6 l |
| Engine layout: | Front, Longitudinal |
| Performance: | |
|---|---|
| Fuel Type: | Diesel |
| Fuel consumption (economy) - urban: | 10.3 l/100 km |
| Fuel consumption (economy) - extra urban: | 5.9 l/100 km |
| Fuel consumption (economy) - combined: | 7.5 l/100 km |
| Emission standard: | Euro 5 |
| Acceleration 0 - 100 km/h: | 6.9 sec |
| Acceleration 0 - 62 mph: | 6.9 sec |
| Maximum speed: | 249 km/h |
| Weight-to-power ratio: | 7.8 kg/Hp, 129 Hp/tonne |
| Weight-to-torque ratio: | 3.4 kg/Nm, 298.1 Nm/tonne |
| Acceleration 0 - 60 mph: | 6.6 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1845 |
| Max. weight: | 2395 |
| Max load: | 550 |
| Trunk (boot) space - minimum: | 450 l |
| Permitted trailer load with brakes (12%): | 2000 kg |
| Fuel tank capacity: | 80 l |
| Size: | |
|---|---|
| Length: | 4945 mm mm [10mm more] |
| Width: | 1845 mm mm [50mm more] |
| Height: | 1500 mm mm [9mm less] |
| Wheelbase: | 2900 mm mm [Same wheelbase.] |
| Front track: | 1575 mm |
| Rear (Back) track: | 1570 mm |
| Ride height (ground clearance): | 144 mm |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 7 |
| Transmission type | Automatic |
| Front brakes | Ventilated discs, 355 mm [Best for performance and cooling.] |
| Rear brakes | Ventilated discs, 350 mm [Best for performance and cooling.] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 245/50 R18 |
| Wheel rims size | 18 |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
What’s the best feature of the Infiniti M? Tell us in the comments!