Infiniti Q70 Tires — Fitment by Year

The Infiniti Q70 is a rear-wheel-drive luxury sport sedan — available in standard and long-wheelbase configurations between 2014 and 2019 — that balances a performance-oriented driving character with the refinement expectations of the luxury segment. That combination shapes every tire decision you make. The Q70 was designed to deliver composed highway cruising alongside responsive handling, so tire selection directly affects how well the car delivers on both fronts.

Tire sizes on the Q70 vary depending on model year and trim level, but the platform commonly uses staggered fitments — meaning the rear tires are wider than the fronts. This is standard practice for performance-focused rear-wheel-drive vehicles and improves traction and stability under acceleration. Because of this, front and rear tires are not interchangeable for rotation, which affects your long-term maintenance planning. Always confirm your exact OEM tire size from the door jamb placard before ordering, as staggered setups require precise size matching on each axle.

For daily driving and year-round use in mild climates, a quality grand touring all-season tire is the most practical choice for the Q70. These tires balance low road noise, dry and wet grip, and acceptable tread life — all of which align with the Q70's character. If you live in an area with genuine winter conditions, a dedicated winter tire set mounted on a second set of wheels is strongly recommended. All-season tires, including those marked with the M+S rating, are not a substitute for winter-compound tires when temperatures consistently drop below 45°F. The Q70's rear-wheel-drive layout means traction management in snow and ice relies even more heavily on tire compound quality than in an all-wheel-drive vehicle.

Load rating and speed rating matter on the Q70. The vehicle's curb weight and performance capability require tires rated to handle sustained highway speeds and lateral loads. Look for tires with at least an H speed rating (130 mph), though many OEM-spec tires for this platform carry a V or W rating. Do not substitute a lower-rated tire to save cost — it compromises both safety margins and handling fidelity. If your Q70 is equipped with run-flat tires from the factory, verify whether your chosen replacement also needs to be run-flat, as the vehicle may not include a spare and the suspension tuning on some trims is calibrated for run-flat sidewall stiffness.

Sidewall profile is another consideration. The Q70 typically runs relatively low-profile tires that contribute to its sharp steering response. Going to a taller sidewall for comfort reasons is possible but changes the effective rolling diameter, which can affect speedometer accuracy and clearance. Staying within one size step of OEM is the practical guideline. Because specifications differ across the 2014–2019 model years and between standard and long-wheelbase trims, always cross-reference the door jamb sticker with your trim's specifications before finalizing any tire purchase.