Infiniti G37 Coupe vs. Nissan 370Z: Which Used VQ37 Sports Car Should You Buy?
There’s a moment when you’re browsing used car listings and you see two cars with the same engine, the same horsepower, and the same Nissan DNA—yet they couldn’t be more different.
The VQ37VHR engine is a masterpiece. It powers both the Infiniti G37 Coupe and the Nissan 370Z, delivering the same creamy V6 soundtrack and bulletproof reliability. But these two cars serve completely different masters. One is a grand tourer built for comfort and style. The other is a pure sports car that prioritizes handling over practically everything else.
Let’s break down which one belongs in your garage.
TL;DR
The Infiniti G37 Coupe and Nissan 370Z share the same legendary 3.7L VQ37VHR engine and similar power figures (330-332 hp), but they’re built for different buyers. The G37 is a luxury grand tourer with a comfortable interior, usable rear seats, and a larger trunk—making it an ideal daily driver with sports car DNA. The 370Z is a focused two-seater sports car that’s lighter, sharper, and more engaging to drive, but sacrifices practicality. On the used market, G37s are generally more affordable ($8,000-$20,880), while 370Zs command higher prices ($13,295-$32,818). Both are reliable, but the G37 offers better value for money if you need daily usability .
Key Takeaways
- Same VQ37VHR engine: Both cars use the 3.7L V6, making 330-332 hp—virtually identical power .
- G37 is cheaper and more practical: Used G37s average around $13,800 vs. $19,700 for 370Zs, with better fuel economy and more interior space .
- 370Z is lighter and sharper: The Z weighs about 400 lbs less, giving it a better power-to-weight ratio and more agile handling .
- G37 has usable rear seats: The coupe offers 29.8 inches of rear legroom and 7.4 cubic feet of trunk space—enough for a weekend trip .
- 370Z is a pure two-seater: No rear seats, just 6.9 cubic feet of cargo space and an uncompromised sports car feel .
- Both are generally reliable: The VQ37VHR is known for durability, though early 2009 models have more complaints .
The Engine: A Shared Heart
Both cars share the VQ37VHR 3.7-liter V6, one of Nissan’s greatest achievements. The G37 Coupe makes 330 horsepower, and the 370Z makes 332 horsepower—a difference you’ll never feel on the road .
The engine is legendary for good reason. It’s smooth, responsive, and practically bulletproof when maintained properly . The VQ family has won multiple Ward’s 10 Best Engines awards, and the VHR (Variable Valve Event and Lift) version adds variable valve timing and lift for better power delivery across the rev range.
Real-world issues to watch for on both:
- Oil consumption: Some 370Z owners report excessive oil consumption, particularly on early models .
- VVEL system malfunctions: The Variable Valve Event and Lift system can develop issues, causing rough idling or performance drops . A 2012 G37 owner reported this with their VVEL control shaft position sensor, which required professional diagnosis and re-initialization .
- Cold start rattling: This can be a sign of timing chain tensioner wear or internal baffle issues .
The good news? These issues are relatively uncommon compared to the overall reliability of the platform. Both cars handle their power well, and with regular maintenance, they’ll easily surpass 150,000 miles.
Practicality and Interior Space
This is where the two cars diverge dramatically.
Infiniti G37 Coupe: The Livable Sports Car
The G37 is a grand tourer at heart. It’s designed for long drives in comfort .
Interior dimensions:
- Front headroom: 39.4 inches
- Front legroom: 43.8 inches
- Rear legroom: 29.8 inches (yes, there are rear seats!)
- Cargo space: 7.4 cubic feet
- Total interior volume: 85.0 cubic feet
The rear seats are tight but usable for small children or extra cargo . One trunk sticker even notes it can fit two golf bags full of clubs—practical enough for a weekend getaway .
Standard luxury features include:
- Heated leather seats
- Leather-wrapped steering wheel
- Bluetooth
- Keyless entry and ignition
Nissan 370Z: The Focused Sports Car
The 370Z makes no apologies for being a pure sports car. It’s a two-seater with limited cargo space.
Interior dimensions:
- Front headroom: 38.2 inches
- Front legroom: 42.9 inches
- Rear seats: None
- Cargo space: 6.9 cubic feet
- Total interior volume: 51.6 cubic feet
The cargo area is effectively a parcel shelf behind the seats . It’s enough for a duffel bag or some groceries, but forget about hauling luggage for a road trip.
Comparison Table
| Feature | Infiniti G37 Coupe | Nissan 370Z |
|---|---|---|
| Seating capacity | 4 (2+2) | 2 |
| Front headroom | 39.4 in | 38.2 in |
| Front legroom | 43.8 in | 42.9 in |
| Rear legroom | 29.8 in | N/A |
| Cargo space | 7.4 cu ft | 6.9 cu ft |
| Total interior volume | 85.0 cu ft | 51.6 cu ft |
| Luxury features | Heated leather seats, premium sound | Minimalist, sport-focused |
Performance and Driving Experience
Power-to-Weight: Where the 370Z Wins
Both cars make similar power, but the 370Z is significantly lighter.
- 370Z curb weight: ~3,232 lbs
- G37 Coupe curb weight: ~3,616 lbs
That’s a 384-pound difference. The 370Z’s power-to-weight ratio is 0.102 hp/lb, compared to the G37’s 0.091 hp/lb . This translates to more agile handling and quicker acceleration.
0-60 mph times:
- G37 Coupe: Approximately 5.4 seconds
- 370Z: Approximately 4.8-5.0 seconds
The 370Z is quicker, sharper, and more responsive. It’s built for the twisty roads and track days . The G37 is no slouch—it’s still quick—but it prioritizes ride comfort over razor-edge handling.
The Transmission Choices
Both cars offer a range of transmissions, but the availability matters:
G37 Coupe:
- 2008 models: 5-speed automatic only
- 2009-2013: Optional 6-speed manual or 7-speed automatic
370Z:
- 6-speed manual (standard)
- 7-speed automatic (optional)
Manual transmissions are becoming rarer on both, so if that’s important to you, search carefully .
One note on the 370Z: Some owners report transmission noise and clutch concerns, so a thorough pre-purchase inspection is essential .
Pricing and Value
This is where the G37 really shines.
Used Market Prices
According to iSeeCars data, a 2013 G37 Coupe ranges from $8,000 to $20,880, with an average around $13,800 . The 370Z for the same year ranges from $13,295 to $32,818, averaging around $19,700 .
CarBuzz confirms you can find decent G37 examples for under $10,000, making it one of the best performance bargains on the market .
Why the Difference?
The G37 depreciated harder because it was a luxury coupe competing with BMW, Audi, and Lexus. The 370Z held its value better because it’s a niche sports car with a dedicated following.
Here’s the thing: the G37 gives you 330 horsepower, rear-wheel drive, and luxury features for thousands less than the Z. If you’re looking for maximum performance per dollar, the G37 is the clear winner .
UK Market Values
For our UK readers, prices are similar in relative terms:
- G37 Coupe: Average valuation around £7,700 with typical mileage of 83,000 miles .
- 370Z: Average valuation around £10,000 with typical mileage of 77,000 miles .
Reliability and Model Years
Both cars are generally reliable, but there are some distinctions.
Best and Worst Years
G37 Coupe:
- Best year: 2013 (fewest complaints, latest updates)
- Worst year: 2009 (most owner complaints, primarily for sunroof drain issues, passenger airbag sensor, and occasional stalling)
370Z:
- Early models (2009-2010) have more reports of oil consumption and VVEL issues .
- Later models benefited from incremental improvements.
Common Issues on Both
- Sunroof drain clogs: Water leaks into the cabin on many G37s .
- Passenger airbag sensor: The sensor can fail, causing the airbag warning light to come on .
- VVEL system: Can malfunction, requiring professional diagnosis .
The VQ37VHR is otherwise robust. It’s one of Nissan’s most reliable engines when maintained properly .
The Verdict: Which One Should You Buy?
Buy the Infiniti G37 Coupe if:
- You want a daily driver with sports car performance
- You need usable rear seats or extra cargo space
- You value luxury features and comfort
- You’re budget-conscious and want the best performance per dollar
- You plan to take road trips or weekend getaways
The G37 gives you 90% of the 370Z’s performance with 100% more practicality. It’s the smarter choice for most buyers .
Buy the Nissan 370Z if:
- Driving dynamics and handling are your top priority
- You don’t need back seats or cargo space
- You’re willing to pay more for a dedicated sports car
- You want a sharper, more engaging driving experience
- You plan to track or autocross the car
The 370Z is the purist’s choice. It’s lighter, more agile, and more focused—but less practical and more expensive .
Comparison Table
| Category | Infiniti G37 Coupe | Nissan 370Z |
|---|---|---|
| Engine | 3.7L V6 (330 hp) | 3.7L V6 (332 hp) |
| Torque | 270 lb-ft | 270 lb-ft |
| 0-60 mph | ~5.4 seconds | ~4.8-5.0 seconds |
| Curb weight | ~3,616 lbs | ~3,232 lbs |
| Seating | 4 seats (2+2) | 2 seats |
| Cargo space | 7.4 cu ft | 6.9 cu ft |
| Fuel economy (combined) | 22 MPG | 21 MPG |
| Used price range | $8,000-$20,880 | $13,295-$32,818 |
| Best for | Daily driving, road trips, comfort | Track days, canyon carving, pure fun |
Frequently Asked Questions
Which car has more horsepower?
The Nissan 370Z has 332 horsepower, while the Infiniti G37 Coupe has 330 horsepower. The difference is negligible .
Which car is more reliable?
Both are highly reliable with the VQ37VHR engine. The G37’s 2009 model year has the most complaints, while the 370Z’s early years have more oil consumption reports .
Which car is cheaper to buy used?
The G37 Coupe is significantly cheaper, with average prices around $13,800 vs. $19,700 for the 370Z .
Can the G37 Coupe fit a car seat?
Yes, the G37 has rear seats with 29.8 inches of legroom. It can fit small children but is tight for adults .
Does the 370Z have back seats?
No, the 370Z is a strict two-seater with no rear seats .
Which car is better for daily driving?
The G37 Coupe is better for daily driving due to its luxury features, comfortable ride, and extra practicality .
What transmission options are available?
Both cars offer 6-speed manual and 7-speed automatic transmissions, though the G37’s 2008 model was 5-speed automatic only .
References:
- iSeeCars – G37 Coupe vs 370Z Comparison
- CarBuzz – G37 Coupe Buyer’s Guide
- CarBuzz – Quickest Reliable Car Under $10K
- Engine Explained – 370Z Reliability
- Cars.com – Comparison Data
What’s your pick—the luxury GT or the pure sports car? Drop a comment below and share which one you’d choose!
