Toyo Proxes Sport 2 vs Sumitomo HTR Z5
In the 2 independent tests that ran both tires, the Toyo Proxes Sport 2 finished ahead 2 times and the HTR Z5 not once. The Proxes Sport 2 was stronger in dry and wet.
Performance profile
9 measurements from the 2 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
Proxes Sport 2
HTR Z5
Not ahead on any measurement here
Point at or tap any spoke for both tires' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 118 ft stop against 112 ft is 95%; each spoke averages the shared tests that recorded it. The scale stops at 92%: a point further in sits on the hub's edge, hollow.
Where owners rate each higher
Proxes Sport 2
HTR Z5
Not ahead in any category
Point at or tap any spoke for both tires' figures.
Owners rate the Proxes Sport 2 92% from 9 reviews and the HTR Z5 77% from 8. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
Every measurement, side by side
Averages of the figures both tires posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Wins count the tests in which each tire did better.
| Measurement | Proxes Sport 2 | Gap | HTR Z5 | Wins |
|---|---|---|---|---|
| Dry Proxes Sport 2 ahead | ||||
| Dry Braking ft | 109 | 5.8% | 116 | 2-0 |
| Dry Handling s | 28.82 | 2.5% | 29.55 | 1-0 |
| Subj. Dry Handling pts | scored | 17.8% | scored | 1-0 |
| Dry Circle g | 0.98 | 4.3% | 0.94 | 1-0 |
| Subj. Road Score pts | scored | 1.2% | scored | 1-0 |
| Wet Proxes Sport 2 ahead | ||||
| Wet Braking ft | 115 | 2.2% | 116 | 1-1 |
| Wet Handling s | 31.39 | 4% | 32.69 | 1-0 |
| Subj. Wet Handling pts | scored | 13.5% | scored | 1-0 |
| Wet Circle mph | 1.9 | 5.1% | 1.8 | 1-0 |
Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tires shared.
Head to head in 2 tests, 2023 to 2025
Each row is one published test in which both tires ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | Proxes Sport 2 | Field | HTR Z5 |
|---|---|---|---|
| 2025 Tire Rack UUHP Summer Tire Test | P6 of 10 | P9 of 10 | |
| 2023 Summer Tire Market Overview | P10 of 50 | P27 of 50 |
Proxes Sport 2 vs HTR Z5: your questions
Is the Toyo Proxes Sport 2 or the Sumitomo HTR Z5 the better tire?
In the 2 independent tests that ran both tires, the Toyo Proxes Sport 2 finished ahead 2 times and the HTR Z5 not once. On the Tire Reviews Score, which weighs every test and review we hold, the Proxes Sport 2 scores 9.1 and the HTR Z5 7.7 out of 10.
Which is better in the wet, the Proxes Sport 2 or the HTR Z5?
The Proxes Sport 2 led 4 of the 5 wet measurements the shared tests recorded.
Which is better in the dry?
The Proxes Sport 2 led 6 of the 6 dry measurements the shared tests recorded. On average it stopped 5.8% shorter in the dry across 2 tests.
Which is quieter and more comfortable?
Owners rate comfort 8.5/10 for the Proxes Sport 2 and 7.6/10 for the HTR Z5.
What do owners say?
Owners rate the Proxes Sport 2 92% from 9 reviews and the HTR Z5 77% from 8. 100% of Proxes Sport 2 owners would buy it again, against 86% for the HTR Z5.
Are they available in the same sizes?
The Proxes Sport 2 is made in 113 sizes (17 to 22 inch) and the HTR Z5 in 30 (17 to 20 inch). 29 sizes are available in both. On the EU label the Proxes Sport 2 is graded A for wet grip and C for rolling resistance in most sizes; the HTR Z5 A and D.
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Run either of these?
Your review is the part of this page no test can supply: how the tire wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tires ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tire Reviews Score rates each tire out of 10 from every independent test result and vetted owner review we hold, so two tires can be compared even before a test has run them together.
Who does the testing
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.