Head-to-head Updated

Sumitomo HTR Z III vs Toyo Proxes Sport — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

HTR Z III is ahead, 63–56

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Tire ASumitomo

HTR Z III

Summer

Tests – · 1 test Owners 58 · 42 reviews

Best test result: #6 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))

Tire BToyo

Proxes Sport

Summer

Tests 58 · 20 tests Owners 54 · 1,277 reviews

Best test result: #20 of 22 in 2022 Consumer Reports Ultra High Performance Summer Tires (tested tread life (miles))

“Quote: Originally Posted by Brian Goodwin I own both the Falken and Toyo Proxes Sport, both in 235/40-17. The Toyo rides better, the Falken goes faster through the turns, and turn-in response is much quicker. I have not bothered to take the Toyo to the track because around our fun canyon roads it is clearly slower and with less grip than the Falken. The Falken feels like a race tire, complete with stiff sidewall support for crisp turn-in, used those for track and autocross over the last few months, including two wins in class at autocross. The Toyo feels like a street tire, much like the Continental ECS, complete with much lower weight because sidewalls are comparatively soft and squishy next to the Falken. If you want a soft daily driver 235/40 and you accept it is a few clicks slower than the Falken, the Toyo is great as a daily driver. But if you expect that Toyo to keep up with the Falken on track days, you will be disappointed. Great feedback, thanks Brian. Wish there were more options in this size! May just stick with the RT660s, especially now with the HKS GT2 on the car”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 68

    Dry

    HTR Z III +6
    62
    Why this score
    SourceHTR Z IIIProxes Sport
    Professional tests (TWG score)–61
    Reviews found online6864
  2. 64

    Wet

    Proxes Sport +6
    70
    Why this score
    SourceHTR Z IIIProxes Sport
    Professional tests (TWG score)–76
    Reviews found online6261
  3. 37

    Snow

    HTR Z III +3
    34
    Why this score
    SourceHTR Z IIIProxes Sport
    Reviews found online1510
  4. 67

    Comfort

    HTR Z III +13
    54
    Why this score
    SourceHTR Z IIIProxes Sport
    Professional tests (TWG score)–50
    Reviews found online6660
  5. 66

    Noise

    Proxes Sport +3
    69
    Why this score
    SourceHTR Z IIIProxes Sport
    Professional tests (TWG score)–70
    Reviews found online6468
  6. 66

    Treadwear

    HTR Z III +22
    44
    Why this score
    SourceHTR Z IIIProxes Sport
    Professional tests (TWG score)7036
    Reviews found online6056
  7. 67

    Handling

    HTR Z III +12
    55
    Why this score
    SourceHTR Z IIIProxes Sport
    Reviews found online6755
Scores at a glance
Sumitomo HTR Z III vs Toyo Proxes Sport: scores by category (0–100)
CategorySumitomo HTR Z IIIToyo Proxes Sport
Relative Score 63 56
Dry 68 62
Wet 64 70
Snow 37 34
Comfort 67 54
Noise 66 69
Treadwear 66 44
Handling 67 55

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

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Recomputed
Headline score

HTR Z III

Proxes Sport

The professional test results behind the scores

Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.

DisciplineCategoryHTR Z IIIProxes SportΔBoth?
Tested Tread Life (Miles) Other 62% #6/22 · 2022 Consumer Reports Ultra High Performance Summer Tires 46% #20/22 · 2022 Consumer Reports Ultra High Performance Summer Tires +15.4 Same test
Overall Ranking Overall 24% #17/22 · 2022 Consumer Reports Ultra High Performance Summer Tires 10% #10/10 · 2020 UHP, UUHP and Track Day Tyre Test +13.8 Different tests

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A HTR Z III

Pros

  • Excellent price-to-performance ratio
  • Strong dry handling and steering feedback
  • Quiet and comfortable ride quality

Cons

  • Inconsistent wet-weather side grip during cornering
  • Limited traction under heavy acceleration on high-horsepower vehicles
  • Not suitable for winter or freezing conditions
All owner themes in the HTR Z III review

Tire B Proxes Sport

Pros

  • Significantly more affordable than premium tier summer tires while offering around 80-90% of the performance
  • Commendable grip and handling in dry conditions with a progressive, predictable breakaway
  • Low road noise and generally high ride comfort compared to factory run-flats or older performance tires

Cons

  • Faster-than-expected tread wear, with multiple users reporting replacement necessary between 6,000 and 12,000 miles
  • Inconsistent or slippery wet-weather traction and occasional tendency to hydroplane in heavy standing water
  • Stiff sidewalls on certain sizes leading to a harsher ride quality or increased noise for some drivers
All owner themes in the Proxes Sport review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Sumitomo HTR Z III

We haven't collected enough community discussion about this tire yet.

Tire B

Toyo Proxes Sport

Positive

Community sentiment toward the Toyo Proxes Sport family is generally positive, with drivers praising its ride comfort, good value for money, and competent daily street grip. Many owners appreciate unique size options like 345/25-20 for high-performance cars, though enthusiasts note that dedicated track tires offer superior turn-in sharpness and ultimate traction. A common topic of discussion is the scarcity of extensive real-world reviews, particularly regarding newer variants.

Top themes
#Value for money#Ride comfort#Street vs track performance#Wide fitment availability#Tread wear and longevity#Limited review availability

Based on 34 community posts

Specs side by side

Attribute A · Sumitomo HTR Z III B · Toyo Proxes Sport
CategorySummerSummer
Vehicle typePassenger Car / CrossoverPassenger Car / Crossover
Sizes available183
Rim diameters19″17″ – 21″
Tread depth10/32″9 - 10/32″
UTQG300 A A240 AA A
Treadwear warranty—25,000 mi
SidewallBlackwallBlack Side Wall
Max pressure50 psi50 - 51 psi

Which one should you actually buy?

Sumitomo HTR Z III

Toyo Proxes Sport

Winner: Sumitomo HTR Z III — better treadwear, comfort and handling. Pick the Toyo Proxes Sport if wet and noise matter most to you.

Pick tire A You want the longest tread life

Sumitomo HTR Z III scores 66 vs 44 on treadwear.

Pick tire A You want the most comfortable ride

Sumitomo HTR Z III scores 67 vs 54 on comfort.

Pick tire A You enjoy sharp, responsive handling

Sumitomo HTR Z III scores 67 vs 55 on handling.

Pick tire A You want the most grip on dry roads

Sumitomo HTR Z III scores 68 vs 62 on dry.

Tire A · Sumitomo HTR Z III
Tire B · Toyo Proxes Sport

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How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Community buzz from Reddit and forums is shown for context only — it never changes the score.

63

Leads

HTR Z III

Amazon