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Bridgestone DriveGuard vs Pirelli Scorpion STR — Compared

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 + 0 road tests and 46 + 57 owner reviews. How we score

Too close to call: DriveGuard 62, Scorpion STR 63.

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Category by category

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

  1. 64

    Dry

    DriveGuard +1
    63
    Why this score
    SourceDriveGuardScorpion STR
    Professional tests (TWG score)≈ 66 (est.)≈ 65 (est.)
    Reviews found online6361

    DriveGuard: 60% × 65.7 (est.) + 40% × 62.5 = 64

    Scorpion STR: 60% × 65.1 (est.) + 40% × 60.9 = 63

    No road tests of dry for DriveGuard. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

    No road tests of dry for Scorpion STR. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 70

    Wet

    DriveGuard +3
    67
    Why this score
    SourceDriveGuardScorpion STR
    Professional tests (TWG score)≈ 70 (est.)≈ 68 (est.)
    Reviews found online6966

    DriveGuard: 60% × 70 (est.) + 40% × 69.3 = 70

    Scorpion STR: 60% × 67.9 (est.) + 40% × 65.5 = 67

    No road tests of wet for DriveGuard. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Scorpion STR. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 59

    Snow

    Scorpion STR +2
    61
    Why this score
    SourceDriveGuardScorpion STR
    Professional tests (TWG score)≈ 64 (est.)≈ 65 (est.)
    Reviews found online5255

    DriveGuard: 60% × 63.6 (est.) + 40% × 51.6 = 59

    Scorpion STR: 60% × 64.7 (est.) + 40% × 54.5 = 61

    No road tests of snow for DriveGuard. 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 Scorpion STR. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 59

    Comfort

    Level
    59
    Why this score
    SourceDriveGuardScorpion STR
    Professional tests (TWG score)≈ 66 (est.)≈ 66 (est.)
    Reviews found online5554

    DriveGuard: 40% × 66.5 (est.) + 60% × 54.7 = 59

    Scorpion STR: 40% × 66.3 (est.) + 60% × 53.7 = 59

    No road tests of comfort for DriveGuard or Scorpion STR. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 65

    Noise

    Scorpion STR +1
    66
    Why this score
    SourceDriveGuardScorpion STR
    Professional tests (TWG score)≈ 67 (est.)≈ 67 (est.)
    Reviews found online6364

    DriveGuard: 60% × 66.6 (est.) + 40% × 62.6 = 65

    Scorpion STR: 60% × 66.6 (est.) + 40% × 64.4 = 66

    No road tests of noise for DriveGuard or Scorpion STR. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 47

    Treadwear

    Scorpion STR +13
    60
    Why this score
    SourceDriveGuardScorpion STR
    Professional tests (TWG score)≈ 55 (est.)≈ 63 (est.)
    Reviews found online3556

    DriveGuard: 60% × 55.3 (est.) + 40% × 35.1 = 47

    Scorpion STR: 60% × 62.5 (est.) + 40% × 55.8 = 60

    No road tests of treadwear for DriveGuard. 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 Scorpion STR. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 61

    Handling (owners)

    Scorpion STR +2
    63
    Why this score
    SourceDriveGuardScorpion STR
    Reviews found online6163
Scores at a glance
CategoryBridgestone DriveGuardPirelli Scorpion STR
Relative Score 62 63
Dry 64 63
Wet 70 67
Snow 59 61
Comfort 59 59
Noise 65 66
Treadwear 47 60
Handling (owners) 61 63

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

Weight the categories that matter to you

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.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 7

DriveGuard

± 7

Scorpion STR

Pros, cons & observations

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

Tire A DriveGuard

Pros

  • Improved ride comfort and noise reduction compared to standard or OEM run-flat tires
  • Strong dry and wet grip with confident handling
  • Run-flat safety technology providing peace of mind against sudden punctures

Cons

  • Extremely fast tread wear, with many users reporting bald tires or legal-limit wear within 8,000 to 13,000 miles
  • Poor winter traction, performing poorly on ice and severe snow
  • Developing loud road noise, hums, or low-frequency harmonics over time as they wear
All owner themes in the DriveGuard review

Tire B Scorpion STR

Pros

  • Exceptional tread life and durability, with many users reporting 40,000 to 80,000+ miles of use.
  • Quiet and comfortable ride quality, particularly on highway surfaces.
  • Strong performance in wet and snowy conditions, providing a secure, surefooted feel.

Cons

  • Increased road noise and potential for rougher ride quality as the tread wears down.
  • Inconsistent tread life reports, with some users experiencing premature wear compared to expectations.
  • Mixed feedback on wet-weather grip, with some users finding it inferior to dedicated summer or high-performance alternatives.
All owner themes in the Scorpion STR review

Specs side by side

Attribute A · Bridgestone DriveGuard B · Pirelli Scorpion STR
CategoryAll-SeasonAll Season
Vehicle typePassenger Car / CrossoverSUV and 4x4
Sizes available144
Rim diameters15″ – 18″17″ – 20″
Tread depth9/32″10/32″
UTQG640 A A520 A A
Treadwear warranty—65,000 mi
SidewallBlackwallBlackwall
Max pressure51 psi44 psi
Sizes in common00

Which one should you actually buy?

Bridgestone DriveGuard

Pirelli Scorpion STR

Too close to call: Bridgestone DriveGuard and Pirelli Scorpion STR are within 2 points overall. Bridgestone DriveGuard is stronger on wet. Pirelli Scorpion STR is stronger on treadwear.

Pick tire B You want the longest tread life

Pirelli Scorpion STR scores 60 vs 47 on treadwear.

Pick tire A Your priority is wet-weather safety

Bridgestone DriveGuard scores 70 vs 67 on wet.

Tire A · Bridgestone DriveGuard
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Tire B · Pirelli Scorpion STR
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DriveGuard or Scorpion STR?

Which is better in the wet, DriveGuard or Scorpion STR?

Bridgestone DriveGuard, 70 vs 67 on our wet score.

Which grips better on dry roads, DriveGuard or Scorpion STR?

Neither, by our numbers: 64 vs 63 on the dry score, within 3 points.

Which is better in snow, DriveGuard or Scorpion STR?

Neither, by our numbers: 59 vs 61 on the snow score, within 3 points.

Which is quieter, DriveGuard or Scorpion STR?

Neither, by our numbers: 65 vs 66 on the noise score, within 3 points.

Which is more comfortable, DriveGuard or Scorpion STR?

Neither, by our numbers: 59 vs 59 on the comfort score, within 3 points.

Which lasts longer, DriveGuard or Scorpion STR?

Pirelli Scorpion STR, 60 vs 47 on our treadwear score.

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.

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