Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 1 road tests and 444 + 10 owner reviews. How we score
DriveGuard Plus is ahead, 72–62
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Tests – · none yet Owners 73 · 444 reviews
“Update on these Driveguard plus tires. Almost 2 years old now, just did its second tire rotation. Total distance about 24000, km( 14,900 miles). All tires measured about 7/32 tread left. Much better than the original OEM Michelan tires. No tire issues encountered.”
Tests 72 · 1 test Owners 54 · 10 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 70 (est.) | 87 |
| Reviews found online | 73 | 52 |
DriveGuard Plus: 60% × 70.2 (est.) + 40% × 73.1 = 71
Primacy MXM4: 60% × 87.2 + 40% × 51.9 = 73
No road tests of dry for DriveGuard Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 77 (est.) | 56 |
| Reviews found online | 83 | 58 |
DriveGuard Plus: 60% × 77.4 (est.) + 40% × 82.7 = 80
Primacy MXM4: 60% × 56.1 + 40% × 57.5 = 57
No road tests of wet for DriveGuard Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) | ≈ 71 (est.) | ≈ 62 (est.) |
| Reviews found online | 72 | 48 |
DriveGuard Plus: 60% × 71.4 (est.) + 40% × 72.3 = 72
Primacy MXM4: 60% × 62.2 (est.) + 40% × 47.9 = 56
No road tests of snow for DriveGuard Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
No road tests of snow for Primacy MXM4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 69 (est.) | 64 |
| Reviews found online | 71 | 48 |
DriveGuard Plus: 40% × 69.4 (est.) + 60% × 70.7 = 70
Primacy MXM4: 40% × 63.9 + 60% × 48.3 = 55
No road tests of comfort for DriveGuard Plus. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | ≈ 67 (est.) | 82 |
| Reviews found online | 72 | ≈ 67 (est.) |
DriveGuard Plus: 60% × 66.6 (est.) + 40% × 71.7 = 69
Primacy MXM4: 60% × 81.9 + 40% × 66.6 (est.) = 76
No road tests of noise for DriveGuard Plus. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
No owner ratings of noise for Primacy MXM4. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) | ≈ 65 (est.) | ≈ 64 (est.) |
| Reviews found online | 63 | 59 |
DriveGuard Plus: 60% × 65.1 (est.) + 40% × 63.3 = 64
Primacy MXM4: 60% × 63.7 (est.) + 40% × 59.3 = 62
No road tests of treadwear for DriveGuard Plus. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
No road tests of treadwear for Primacy MXM4. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Reviews found online | 74 | 50 |
| Source | DriveGuard Plus | Primacy MXM4 |
|---|---|---|
| Professional tests (TWG score) · – / 1 tests | – | 55 |
| Category | Bridgestone DriveGuard Plus | Michelin Primacy MXM4 |
|---|---|---|
| Relative Score | 72 | 62 |
| Dry | 71 | 73 |
| Wet | 80 | 57 |
| Snow | 72 | 56 |
| Comfort | 70 | 55 |
| Noise | 69 | 76 |
| Treadwear | 64 | 62 |
| Handling (owners) | 74 | 50 |
| Efficiency | – | 55 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
DriveGuard Plus
Primacy MXM4
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community opinion on the Bridgestone DriveGuard Plus is mixed with positive aspects regarding comfort, noise levels, and tread life compared to standard run-flats and OEM tires. However, potential buyers and users express concerns about wet traction, EV efficiency and rolling resistance, and the advisability of mixing them with the older discontinued DriveGuard generation.
“Update on these Driveguard plus tires. Almost 2 years old now, just did its second tire rotation. Total distance about 24000, km( 14,900 miles). All tires measured about 7/32 tread left. Much better than the original OEM Michelan tires. No tire issues encountered.”
“I did see a thread on here with the owner complaining about how much Bridgestone Driveguard tires lowered the efficiency of his car. His car is a select but with the 18" tire option like the CR1 he says 20% range loss. I won't dispute what he is saying it could be because the Driveguard is heavy and not low rolling resistance. All the run flats I have driven have had poor driving dynamics.”
“Bridgestone Driveguard Plus - can't find them anywhere Our Mercedes A220 came with Pirelli run flat tires and they already need to be replaced after 25000 miles. I was told that the Bridgestone Driveguard Plus tires have a much better tread life but I can't find them in stock anywhere. Does anyone know why they are out of stock and are there any other run flat options with better tread life?”
Based on 19 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Bridgestone DriveGuard Plus | B · Michelin Primacy MXM4 |
|---|---|---|
| Category | All-Season tire | All Season |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 47 | 2 |
| Rim diameters | 16″ – 21″ | 18″ |
| Tread depth | 9/32″ | — |
| UTQG | 500 - 640 A A | — |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Black Side Wall - Raised Black Lettering | — |
| Max pressure | 44 - 51 psi | — |
Bridgestone DriveGuard Plus
Michelin Primacy MXM4
Winner: Bridgestone DriveGuard Plus — better handling, wet and snow. Pick the Michelin Primacy MXM4 if noise matters most to you. Michelin Primacy MXM4 rests on little evidence so far (1 test, 10 reviews), so read this result as provisional.
Bridgestone DriveGuard Plus scores 74 vs 50 on handling.
Bridgestone DriveGuard Plus scores 80 vs 57 on wet.
Bridgestone DriveGuard Plus scores 72 vs 56 on snow.
Bridgestone DriveGuard Plus scores 70 vs 55 on comfort.
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Bridgestone DriveGuard Plus, 80 vs 57 on our wet score.
Neither, by our numbers: 71 vs 73 on the dry score, within 3 points.
Bridgestone DriveGuard Plus, 72 vs 56 on our snow score.
Michelin Primacy MXM4, 76 vs 69 on our noise score.
Bridgestone DriveGuard Plus, 70 vs 55 on our comfort score.
Neither, by our numbers: 64 vs 62 on the treadwear score, within 3 points.
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.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology
