The 2016 Infiniti Q70 carries the long-wheelbase, rear-drive sport luxury sedan formula into a modern era, blending executive-car presence with the sharper character that has long defined Infiniti performance sedans. Buyers looking at one today are often balancing everyday road use with a desire to keep the car’s stance and personality intact. Tire fitment centers on two primary radial sizes, 245/50R18 and 245/40R20, with selection depending first on the exact wheel setup and sub-model. From blackwall performance-oriented choices to raised white letter and redline alternatives, the decision is as much about presentation as fitment. Wheel diameter, appearance goals, and intended driving use should all be confirmed before choosing.
Which Tire Size Is Right for The 2016 Infiniti Q70
The 2016 Infiniti Q70 uses two primary tire sizes, and the first step is confirming whether the car is on 18-inch or 20-inch wheels. Both fitments are radial, but the correct choice depends on the exact sub-model and actual wheel setup, especially on cars that may have had wheel changes since new.
245/40R20 is a modern metric radial size in which 245 identifies the nominal section width in millimeters, 40 is the aspect ratio, and 20 is the wheel diameter in inches. On the 2016 Infiniti Q70, this size supports a lower-profile look on 20-inch wheels and applies to selected 3.7 and 5.6 configurations. Available choices include BFGoodrich, Nitto, and Pro-Trac options, with blackwall, raised white letter, and redline sidewall treatments. This size makes sense when preserving the car’s 20-inch wheel package and comparing tire style, series, and wheel-width compatibility within that setup.
245/50R18 is a modern metric radial size that uses the same 245-millimeter nominal section width but a taller 50-series profile on an 18-inch rim. For the 2016 Infiniti Q70, this size appears across the Hybrid and also on certain 3.7 and 5.6 versions, so wheel diameter and sub-model both matter. Current choices center on Pro-Trac Street Pro III tires with either raised white letter or redline sidewalls. This size is the one to evaluate when the car retains its 18-inch wheels and the goal is to match that rim diameter while choosing the sidewall presentation that suits the car.
Sub-model fitment on the 2016 Infiniti Q70 is not completely uniform, because some versions use either 18-inch or 20-inch tire packages while the Hybrid stays with one size. Checking the exact sub-model and the wheel diameter on the car is the clearest way to avoid choosing the wrong fitment.
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2016 Infiniti Q70 3.7
The 2016 Infiniti Q70 3.7 can use either of the two primary radial tire sizes, so selection starts with confirming whether the car has 18-inch or 20-inch wheels. Once that is settled, the decision shifts to tire series, sidewall style, and the kind of appearance or road use the car is meant to have.
The 2016 Infiniti Q70 5.6 also spans both primary radial fitments, making wheel diameter the key detail before any tire is selected. After confirming the wheel package, the buyer can compare available products by sidewall presentation, brand, and the overall character each tire brings to the car.
The 2016 Infiniti Q70 Hybrid uses the 245/50R18 radial size, which makes fitment more straightforward than on the other sub-models. With size selection simplified, the main choice becomes how the tire should look on the car, particularly between the available raised white letter and redline styles.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2016 Infiniti Q70 Tires for Sale
Available 2016 Infiniti Q70 tire choices vary by wheel size, brand, tire series, and sidewall presentation. The 20-inch fitment includes BFGoodrich, Nitto, and Pro-Trac options in blackwall, raised white letter, and redline styles, while the 18-inch size focuses on Pro-Trac Street Pro III choices.
Owners researching tires for a 2016 Infiniti Q70 usually need to sort out wheel diameter first, then compare radial size, sidewall style, brand, and real-world fitment details. These FAQs focus on exact size use, sub-model differences, product choice, and road-use checks.
Tire Size & Fitment
What tire size fits a 2016 Infiniti Q70?
The 2016 Infiniti Q70 uses two primary tire sizes: 245/40R20 and 245/50R18. Both are radial fitments, but they do not apply the same way across every version, because the 3.7 and 5.6 can use either size while the Hybrid uses 245/50R18.
The practical first step is checking the actual wheel diameter on the car before choosing a tire. A Q70 that has been fitted with different wheels from its original setup can easily lead to the wrong selection, so matching the tire size to the wheel and then confirming clearance and intended appearance is important.
What size rim does a 2016 Infiniti Q70 use?
A 2016 Infiniti Q70 uses either an 18-inch rim or a 20-inch rim, depending on the tire size on the car. The 245/50R18 fitment uses an 18-inch wheel, while the 245/40R20 fitment uses a 20-inch wheel.
That difference matters because the tire must match the wheel diameter exactly. Before comparing brands or sidewall styles, confirm whether the car is wearing its original wheel package or an aftermarket set, then make sure the replacement tire also suits the wheel width and the space available around the suspension and fenders.
Do all 2016 Infiniti Q70 sub-models use the same tire size?
No, not all 2016 Infiniti Q70 sub-models use the same tire size. The Q70 3.7 and Q70 5.6 can use either 245/40R20 or 245/50R18, while the Q70 Hybrid uses 245/50R18.
That means sub-model name alone is not always enough to choose a tire for the 3.7 or 5.6, because those versions still require wheel-diameter confirmation. On the Hybrid, fitment is more straightforward, but it is still wise to check the actual wheel and tire currently installed in case the car has been changed from its original configuration.
Choosing the Right Tire
What should I consider when choosing a tire for a 2016 Infiniti Q70?
Start with the correct primary size for the car: 245/40R20 on a 20-inch wheel or 245/50R18 on an 18-inch wheel. From there, compare the available radial choices by brand, tire series, sidewall style, and any useful fitment details such as compatible rim-width range where it is stated.
The right choice depends on how the Q70 is used and how you want it to look. A lower-profile 20-inch setup carries a different visual character than the 18-inch fitment, and sidewall treatments such as blackwall, raised white letter, or redline can change the overall presentation just as much as the tread design.
What sidewall styles are available for 2016 Infiniti Q70 tires?
Sidewall choices for the 2016 Infiniti Q70 include blackwall, raised white letter, and redline, depending on the tire size and product selected. The 20-inch fitment offers all three styles, while the 18-inch size is available in raised white letter and redline through Pro-Trac Street Pro III tires.
That makes sidewall appearance an important part of the buying decision, especially on a sedan with clean body lines and large wheel openings. Blackwall keeps the look more understated, while raised white letter or redline adds a stronger visual accent, so the best choice depends on whether the goal is subtle presentation or a more distinctive custom touch.
What brands offer tires for the 2016 Infiniti Q70?
Tires for the 2016 Infiniti Q70 are available from BFGoodrich, Nitto, and Pro-Trac. The 20-inch size includes choices from all three brands, while the 18-inch fitment is represented by Pro-Trac options in the Street Pro III series.
Brand comparison should come after size and wheel-diameter confirmation. Once the correct fitment is established, it helps to compare how each option is presented, including series name, sidewall treatment, and any stated wheel-width specification, rather than assuming that every tire in the same nominal size will suit the car in exactly the same way.
Restoration & Appearance
Which tire should I choose for a period-style 2016 Infiniti Q70?
A period-style approach on a 2016 Infiniti Q70 still starts with the correct modern radial size for the wheel package on the car, either 245/50R18 or 245/40R20. From there, the decision is less about vintage construction and more about choosing a sidewall treatment and series that complement the sedan’s original-era luxury sport appearance.
Redline and raised white letter options can create a more personalized look than a plain blackwall, but appearance goals should stay secondary to correct fitment. Owners pursuing a highly authentic presentation should also compare the tire’s visual style to original sales literature, surviving examples, or marque-specific references before settling on a final look.
Does correct tire fitment matter for a 2016 Infiniti Q70 restoration?
Yes, correct tire fitment matters on a 2016 Infiniti Q70 restoration because wheel diameter, sidewall profile, and overall presentation all influence how the finished car sits and drives. Using the proper 18-inch or 20-inch fitment keeps the car visually coherent and avoids turning the tire into a mismatch with the wheel package.
Appearance is only part of the equation. A restoration-minded owner should also verify that the wheel width, tire profile, and clearance all work together, especially if the car has seen suspension work or aftermarket wheels during its life. Correct fitment supports both the look of the car and confidence in everyday road use.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2016 Infiniti Q70?
Yes, modifications can affect tire fitment on a 2016 Infiniti Q70 even when the tire size appears correct on paper. Aftermarket wheels, altered wheel width, suspension changes, or ride-height adjustments can change how a 245/50R18 or 245/40R20 tire sits in the wheel opening and how much clearance it has.
That is why the actual car should be checked before replacing tires, especially on a used Q70 with an unknown history. Wheel diameter is only the beginning; wheel width, offset, steering clearance, and fender clearance all deserve attention so the new tire matches the car’s current setup rather than an assumed original configuration.
What should I inspect before driving a 2016 Infiniti Q70 on new tires?
Before driving a 2016 Infiniti Q70 on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and make sure the tires are seated and inflated properly. It also helps to check for obvious suspension or alignment issues that could affect how the new tires wear and track.
A short follow-up inspection after the first miles is also worthwhile. Look for any sign of rubbing, irregular wear, vibration, or air loss, particularly if the car uses aftermarket wheels or has been modified. Catching a clearance or setup issue early is far easier than discovering it after the tires have already begun to wear unevenly.
How often should tires on a 2016 Infiniti Q70 be inspected?
Tires on a 2016 Infiniti Q70 should be inspected regularly, not just when tread looks low. A quick visual check for cuts, bulges, cracking, uneven wear, or low air pressure is smart before routine driving, and a more careful inspection makes sense before longer trips or after any suspension or wheel change.
Modern luxury sedans can hide tire issues until they become more serious, especially when the car is driven infrequently or stored for stretches. Consistent inspection helps catch aging, pressure loss, and wear-pattern problems early, and it gives the owner a chance to confirm that the tire still clears properly after any wheel, brake, or suspension work.
