Tests – · none yet Owners 78 · 63 reviews
Firestone TZ300A looks discontinued: no new owner reviews or road tests in five years and no current EU tyre label.
Dunlop SP Sport FM800 vs Firestone TZ300A — 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 63 + 24 owner reviews. How we score
SP Sport FM800 is ahead, 76–68
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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.
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75
Dry
SP Sport FM800 +966Why this score
Source SP Sport FM800 TZ300A Professional tests (TWG score) ≈ 72 (est.) ≈ 67 (est.) Reviews found online 78 65 SP Sport FM800: 60% × 72.1 (est.) + 40% × 78.1 = 75
TZ300A: 60% × 66.9 (est.) + 40% × 65.3 = 66
No road tests of dry for SP Sport FM800. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
No road tests of dry for TZ300A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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79
Wet
SP Sport FM800 +772Why this score
Source SP Sport FM800 TZ300A Professional tests (TWG score) ≈ 77 (est.) ≈ 72 (est.) Reviews found online 82 72 SP Sport FM800: 60% × 76.8 (est.) + 40% × 81.8 = 79
TZ300A: 60% × 71.5 (est.) + 40% × 72.2 = 72
No road tests of wet for SP Sport FM800. 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 TZ300A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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73
Comfort
SP Sport FM800 +865Why this score
Source SP Sport FM800 TZ300A Professional tests (TWG score) ≈ 70 (est.) ≈ 68 (est.) Reviews found online 76 64 SP Sport FM800: 40% × 70 (est.) + 60% × 75.6 = 73
TZ300A: 40% × 67.7 (est.) + 60% × 63.7 = 65
No road tests of comfort for SP Sport FM800. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
No road tests of comfort for TZ300A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).
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72
Treadwear
SP Sport FM800 +567Why this score
Source SP Sport FM800 TZ300A Professional tests (TWG score) ≈ 70 (est.) ≈ 67 (est.) Reviews found online 76 67 SP Sport FM800: 60% × 69.8 (est.) + 40% × 75.7 = 72
TZ300A: 60% × 66.7 (est.) + 40% × 66.9 = 67
No road tests of treadwear for SP Sport FM800. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
No road tests of treadwear for TZ300A. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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79
Handling (owners)
SP Sport FM800 +1069Why this score
Source SP Sport FM800 TZ300A Reviews found online 79 69
Scores at a glance
| Category | Dunlop SP Sport FM800 | Firestone TZ300A |
|---|---|---|
| Relative Score | 76 | 68 |
| Dry | 75 | 66 |
| Wet | 79 | 72 |
| Comfort | 73 | 65 |
| Treadwear | 72 | 67 |
| Handling (owners) | 79 | 69 |
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.
SP Sport FM800
TZ300A
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A SP Sport FM800
Pros
- Exceptional wet and dry traction with strong anti-aquaplaning capabilities
- High value for money compared to premium brands like Michelin and Bridgestone
- Low road noise and very quiet, smooth ride quality
Cons
- Faster than average tread wear reported by some drivers
- Rubber compound can harden over time, leading to reduced performance as the tire ages
- Softer sidewalls can occasionally result in slightly less precise steering feel
Tire B TZ300A
Pros
- Excellent tread life and overall longevity
- Strong dry-weather grip and handling
- High value-for-money proposition
Cons
- Inconsistent road noise levels, with some users reporting intrusive drone
- Variable wet-weather performance and occasional aquaplaning concerns
- Lack of steering feedback or 'wallowy' feel on certain vehicle setups
Specs side by side
| Attribute | A · Dunlop SP Sport FM800 | B · Firestone TZ300A |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| UTQG | 320 B A | — |
Which one should you actually buy?
Dunlop SP Sport FM800
Firestone TZ300A
Winner: Dunlop SP Sport FM800 — better handling, dry and comfort. It leads or ties in every category we score.
Dunlop SP Sport FM800 scores 79 vs 69 on handling.
Dunlop SP Sport FM800 scores 75 vs 66 on dry.
Dunlop SP Sport FM800 scores 73 vs 65 on comfort.
Dunlop SP Sport FM800 scores 79 vs 72 on wet.
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SP Sport FM800 or TZ300A?
Which is better in the wet, SP Sport FM800 or TZ300A?
Dunlop SP Sport FM800, 79 vs 72 on our wet score.
Which grips better on dry roads, SP Sport FM800 or TZ300A?
Dunlop SP Sport FM800, 75 vs 66 on our dry score.
Which is more comfortable, SP Sport FM800 or TZ300A?
Dunlop SP Sport FM800, 73 vs 65 on our comfort score.
Which lasts longer, SP Sport FM800 or TZ300A?
Dunlop SP Sport FM800, 72 vs 67 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