Published by Rims & Tires
Compiled & checked by the site's publisher from manufacturer, NHTSA & USTMA data · Updated 2026-07-24
The Infiniti Q70 (discontinued 2019, formerly M37/M56) is a rear-wheel drive and AWD luxury sport sedan that remains common in the used luxury car market. It competes with the BMW 5 Series and Mercedes E-Class. Tire selection should favor long wear, highway refinement, and all-season wet safety.
Infiniti Q70 tire sizes
The Q70 uses 245/50R18 on 18-inch alloy wheels standard, with 245/40R20 available on 20-inch wheels across 3.7 and 5.6 trims. Verify on the driver door sticker.
Best tires for the Infiniti Q70
Michelin Pilot Sport All Season 4 (245/50R18, 245/40R20) — the top sport all-season for the Q70. Available in both sizes. Outstanding wet and dry performance, 45,000-mile warranty. Best for Q70 drivers who want real sport capability.
Continental PureContact LS (245/50R18) — the quietest luxury touring all-season for the Q70 on 18-inch. Very low road noise, 70,000-mile warranty, strong wet traction.
Bridgestone Turanza T005 (245/50R18, 245/40R20) — OEM-grade luxury all-season. Available in both Q70 sizes. Outstanding road noise suppression, strong wet braking.
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Choosing Q70 tires for West Georgia roads
The Infiniti Q70 is a luxury sport sedan, so the best tire keeps the cabin quiet without dulling the way it drives. For most owners covering daily miles around Carroll County, a luxury touring all-season delivers the smooth, hushed ride the car was built for while handling our rainy stretches. If you enjoy the Q70's performance side, a sport all-season adds grip and steering feel while still covering the rare icy morning here, which means no seasonal tire swaps. Match the size on your door-jamb sticker, and think about how you actually drive before you choose a tier. When you're deciding between comfort and sharper handling, a local shop can point you to the tire that fits your driving and your budget.
Best Tires for the Infiniti Q70 at a glance
| Tire | Size | Best For |
|---|---|---|
| Michelin Pilot Sport All Season 4 | 245/50R18, 245/40R20 | the top sport all-season for the Q70. Available in both sizes. Outstanding wet and dry performance, 45,000-mile warranty. Best for Q70 drivers who want real sport capability. |
| Continental PureContact LS | 245/50R18 | the quietest luxury touring all-season for the Q70 on 18-inch. Very low road noise, 70,000-mile warranty, strong wet traction. |
| Bridgestone Turanza T005 | 245/50R18, 245/40R20 | OEM-grade luxury all-season. Available in both Q70 sizes. Outstanding road noise suppression, strong wet braking. |
Frequently asked
What tire size does the Infiniti Q70 use?
Standard (18-inch): 245/50R18. Optional (20-inch): 245/40R20. Verify on the driver door sticker.
How much do Infiniti Q70 tires cost?
245/50R18: $140 to $230 per tire. 245/40R20: $160 to $260 per tire. A full set on 18-inch installed runs $560 to $920.
Should I run all-season or performance tires on my Infiniti Q70?
For year-round West Georgia driving, a sport or luxury all-season is the practical pick, since it keeps the Q70 quiet and composed without needing seasonal swaps. If you lean into the car's performance side, a max-performance all-season adds grip while still handling our occasional cold snap. A summer tire is grippier still but unsafe near freezing, so it's warm-weather only.
Are quieter tires worth it on an Infiniti Q70?
For a luxury sedan like the Q70, usually yes. The cabin is tuned to be hushed, so a loud budget tire undercuts the whole feel of the car. A comfort-focused touring tire keeps road noise low and rides smoothly, and the better ones still deliver strong wet braking for our rainy stretches.
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Last updated 2026-07-24. General guidance only — confirm specifics with a local shop for your exact vehicle.