“The one thing I feel is lacking on this vehicle is a compass heading - like the one normally displayed on the interior rear view mirror. A car of this caliber and cost should have it. Else, the quality and value is just flat out superb. The engine, a normally aspirated v-6 is bounding with power - 330 HP to quote the specs. I am sure they could have traded some power for economy, but I am glad they did not.”
2015 INFINITI Q70: What's New, Specs & Features
Last updated August 4, 2026
The biggest change for the 2015 INFINITI Q70 is a mid-cycle styling refresh that reshaped the front and rear ends. The new Q70L also joined the lineup with a longer body and substantially more rear-seat room, while the core platform and engines carried over.
About the 2015 INFINITI Q70
Y51 generation, refresh year; first year for the Q70L long-wheelbase variant. This generation began as the 2011 Infiniti M sedan and was renamed Q70 for 2014.
The Q70 is Infiniti’s large luxury sedan for shoppers who want traditional rear-drive balance, strong engine choices, and a rich, quiet cabin without giving up responsive handling. Infiniti marketed it around style, craftsmanship, and technology, with the Hybrid aimed at efficiency-minded drivers and the Q70L aimed at rear-seat comfort. Its basic appeal is that it blends big-sedan comfort with more athletic character than a soft, purely comfort-first luxury car.
The 2015 Q70 lineup ranges from the 330-hp V6-powered 3.7 to the better-equipped 5.6 with a 420-hp V8, navigation, Bose audio, and heated and cooled front seats. The Hybrid pairs a V6 with an electric motor, while the new Q70L 3.7 and L 5.6 emphasize rear-seat comfort with 41.8 inches of rear legroom and power-assisted rear-door closing.
What changed, by category
Powertrain
The main gas engines carried over, but the Q70 Hybrid received a stronger electric-motor torque rating.
Styling
Infiniti redesigned the grille, front and rear bumpers, and LED lighting details. The 3.7 and Hybrid also changed from standard leather upholstery to standard synthetic leather, with leather optional.
Safety
Camera-based parking assistance and Forward Emergency Braking spread more widely through the lineup. The 5.6 made the Around View Monitor with Moving Object Detection standard through its included Premium package.
Structural
The new Q70L 3.7 and Q70L 5.6 added nearly six inches between the axles, creating 5.6 inches of extra rear legroom compared with the standard-length Q70.
2015 INFINITI Q70 specs and features by trim
| Feature | |||||
|---|---|---|---|---|---|
| Engine | V6, 3.7 Liter | V8, 5.6 Liter | V6, 3.7 Liter | V8, 5.6 Liter | V6, Hybrid, 3.5 Liter |
| Transmission | Auto, 7-Spd Manual | Auto, 7-Spd Manual | Auto, 7-Spd Manual | Auto, 7-Spd Manual | Auto, 7-Spd Manual |
| Drivetrain | RWD | RWD | RWD | RWD | RWD |
| Fuel Type | Gas | Gas | Gas | Gas | Hybrid |
| MPG City | 18 mpg | 16 mpg | 18 mpg | 16 mpg | 29 mpg |
| MPG Highway | 26 mpg | 24 mpg | 26 mpg | 24 mpg | 34 mpg |
| Horsepower | 330 hp | 420 hp | 330 hp | 416 hp | 360 hp |
| Torque | 270 lb-ft | 417 lb-ft | 270 lb-ft | 414 lb-ft | 258 lb-ft |
| Trunk/Cargo | 14.9 cu-ft | 14.9 cu-ft | 14.9 cu-ft | 14.9 cu-ft | 11.3 cu-ft |
| Rear Legroom | 36.2 in | 36.2 in | 41.8 in | 41.8 in | 36.2 in |
| Seats | 5 | 5 | 5 | 5 | 5 |
| Doors | 4 | 4 | 4 | 4 | 4 |
| Adaptive Cruise Control | |||||
| Alarm System | |||||
| Active Lane Keep Assistance | |||||
| Rear Parking Sensors | |||||
| Rear View Camera | |||||
| Alloy Wheels | |||||
| Fog Lights | |||||
| LED Headlights | |||||
| Power Moonroof | |||||
| Rear Spoiler | |||||
| Bluetooth | |||||
| Front DVD Entertainment System | |||||
| Navigation System | |||||
| Premium Audio | |||||
| Satellite Radio | |||||
| USB Ports | |||||
| Cooled Seats | |||||
| Dual-Zone Climate Control | |||||
| Heated Front Seats | |||||
| Heated Rear Seats | |||||
| Heated Steering Wheel | |||||
| Leather Seats | |||||
| Proximity Keyless Entry | |||||
| Push-Button Engine Start | |||||
Frequently asked questions
Was the 2015 INFINITI Q70 fully redesigned?
No. The 2015 INFINITI Q70 received a substantial mid-cycle refresh rather than a full redesign. It kept the same basic platform and core engines but gained redesigned front and rear styling, expanded driver-assistance features, and new long-wheelbase Q70L models.
What was new about the 2015 INFINITI Q70L?
The Q70L was new for 2015 and stretched the distance between the front and rear wheels by nearly six inches. Its back seat gained 5.6 inches of legroom, for a total of 41.8 inches, and both V6-powered L 3.7 and V8-powered L 5.6 versions joined the lineup.
Did the 2015 INFINITI Q70 get different engines?
No major engine change occurred for 2015. The standard-length lineup retained its 330-hp 3.7-liter V6, 420-hp 5.6-liter V8, and V6-based hybrid system, although the Hybrid received a stronger electric-motor torque rating. The new long-wheelbase Q70L used the V6 or a 416-hp version of the V8.
Did the 2015 INFINITI Q70 add safety technology?
Yes. The 2015 Q70 expanded access to camera-based parking assistance and Forward Emergency Braking. The 5.6 also made the Around View Monitor with Moving Object Detection standard through its included Premium package.
Did the 2015 INFINITI Q70’s interior materials change?
Yes. The 3.7 and Hybrid switched from standard leather upholstery to standard synthetic leather, with leather optional. The V8-powered 5.6 retained leather upholstery as standard equipment.
2015 INFINITI Q70 Reviews
What owners are saying about the 2015 INFINITI Q70.
4.3
2015 INFINITI Q70
(62 reviews)
“Love the style, performance, and reliability of this vehicle. It's everything you want in a luxury, sporty, comfortable vehicle that will have no issues.”
“My new car had a rattle in the dash before the odometer hit 200 miles, but overall I love this car.”
Sources
- usa.infinitinews.com — en US / Releases / Release F9F749299C8443Df8Eb630F0C820A027 Infiniti What S New For 2015 Us
- usa.infinitinews.com — en US / Releases / Release 2Bb8025Cc2E94E9Ea7654F84Ec577B6C Us 2015 Infiniti Q70 Press Kit
- usa.infinitinews.com — en US / Releases / Release 63645A2551144A609F743D6A985267Ab Us 2015 Infiniti Q70 Hybrid Press Kit
- usa.infinitinews.com — en US / Releases / Release 54A4Dc3Fb55049E5Aee4C5Faf11A3506 Us 2015 Infiniti Q70L Press Kit
- usa.infinitinews.com — en US / Releases / Release 624Cbc8720Bf4474Ac0D3E0B247C9138 Us 2014 Infiniti Q70 Press Kit
- usa.infinitinews.com — en US / Releases / Release 540Cf37F6B2149798C895Efe95Fb3353 Infiniti What S New For2016
- usa.infinitinews.com — en US / Releases / Release Cbd559C8Dd71494Bac9F3C54B8B93F6F Us 2016 Infiniti Q70 Hybrid Press Kit
- usa.infinitinews.com — en US / Releases / Release 0E00E73D05Eb49Fbaa302Ef6B079A561 Us 2016 Infiniti Q70L Press Kit