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Accelera Alpha

The Accelera Alpha is a High Performance Summer tyre designed to be fitted to Passenger Cars.

5.4
Tyre Reviews Score Based on User Reviews
Limited Confidence View Breakdown
Dry Grip
65%
Wet Grip
44%
Road Feedback
53%
Handling
48%
Wear
69%
Comfort
56%
Buy again
48%
131 Reviews
55% Average
1,082,626 miles driven
Accelera Alpha

Accelera Alpha

Summer Budget
BETA
5.4 / 10
Based on User Reviews · Limited Confidence · Updated 23 Feb 2026

The Tyre Reviews Score is the most comprehensive tyre scoring system available. It aggregates professional test data from multiple independent publications, user reviews, and consistency analysis using Bayesian statistical methods, weighted normalisation, and recency-adjusted scoring to produce a single, reliable performance rating.

Learn more about our methodology
Score Components
Professional Tests
Weight: 80%
Tests: 0
Publications: 0
User Reviews
Weight: 15%
Reviews: 131
Avg Rating: 54.7%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.1
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tyre tests across multiple publications. Minimum 1 test(s) required.
  2. Normalize Positions: Convert test positions to percentile scores using exponential weighting (factor: 1.2).
  3. Apply Recency Weighting: More recent tests are weighted higher with a decay rate of 0.95.
  4. Incorporate User Reviews: Factor in user review data (minimum 5 reviews). Weight: 15%.
  5. Bayesian Smoothing: Apply Bayesian prior (score: 7, weight: 1.5) to prevent extreme scores with limited data.
  6. Calculate Final Score: Combine all components using normalization factor of 1.1. Max score with limited data: 9.5.
Component Weights
Test Data
80%
User Reviews
15%
Consistency
5%
All Configuration Parameters
ParameterValueDescription
safety_weight 0.7 Weight multiplier for safety-related metrics
performance_weight 0.55 Weight multiplier for performance metrics
comfort_weight 0.4 Weight multiplier for comfort metrics
value_weight 0.45 Weight multiplier for value-for-money metrics
user_reviews_weight 0.15 How much user reviews contribute to the final score
test_data_weight 0.8 How much professional test data contributes to the final score
consistency_weight 0.05 How much score consistency contributes to the final score
recency_decay_rate 0.95 Rate at which older test results lose influence (higher = slower decay)
min_test_count 1 Minimum number of professional tests required
min_review_count 5 Minimum number of user reviews required
score_version 1.9 Current version of the scoring algorithm
score_normalization_factor 1.1 Factor used to normalize raw scores to the 0-10 scale
confidence_factor_weight 0.2 How much data confidence affects the final score
position_penalty_weight 0.2 Penalty applied for poor test positions
gap_penalty_threshold 12 Score gap (%) that triggers additional penalties
min_metrics_count 2 Minimum number of test metrics needed per test
limited_data_threshold 2 Number of tests below which data is considered limited
single_test_penalty 0.75 Score multiplier when only one test is available
critical_metric_penalty 0.7 Penalty for poor performance on critical safety metrics
critical_metric_threshold 70 Score below which a critical metric penalty applies
position_exponential_factor 1.2 Exponent used to amplify position-based scoring
position_exponential_threshold 0.9 Position percentile below which exponential scoring applies
gap_multiplier_critical 3 Multiplier for critical gap penalties
max_category_weight 2 Maximum weight any single category can have
max_score_limited_data 9.5 Score cap when data is limited
bayesian_prior_weight 1.5 Weight of the Bayesian prior in smoothing
bayesian_prior_score 7 Prior score used for Bayesian smoothing
evidence_test_multiplier 1.9 Multiplier for test evidence in confidence calculation
evidence_metric_divisor 3 Divisor for metric count in evidence calculation
evidence_review_divisor 10 Divisor for review count in evidence calculation
combined_penalty_floor 0.2
All Tests

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Top 3 Accelera Alpha Reviews

Given 20% while driving a Citroën DS3 THP 150 (205/55 R16) on a combination of roads for 3,000 average miles
These tyres came on a car I had just bought (dealer put the cheapest tyres possible on it I think). First week in the dry was fine, then it rained and I honestly thought I was going to die! Zero grip. Creeping around corners to avoid understeer, even at modest speeds. If I was a new driver I would have been in a hedge or worse. These tyres should be illegal, I can't believe they are allowed to sell these to unsuspecting customers. Pay a little more, it could save your life.
October 30, 2024
Given 51% while driving a Volkswagen Caravelle (245/45 R20) on a combination of roads for 1,000 average miles
Noisy and harsh ride
October 16, 2023
Given 41% while driving a Ford (205/55 R16) on a combination of roads for 10 easy going miles
Came on my Mondeo estate 05. I had 2 on the rear xl. Not bad as such, in the dry. In damp or wet, truly scary, you never knew whether they would grip or let go. They let go at really strange times, bizzarre! The scariest tyres I have had. Even remoulds. Glad to be rid of them.
December 26, 2023

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Latest Accelera Alpha Reviews

Given 86% while driving a Volkswagen Polo 1.4 TDI (185/60 R15) on a combination of roads for 38 easy going miles
When I bought my VW Polo new four years ago it was fitted with Hankook tyres, I don't know the type.I was very pleased at the minimum rate of ware. This week I noticed many small cracks had appeared at each side of the tread above the tyre wall and on the entire circumference on both sides of the tyre. All the four tyres were the same. The depth of tread is 4.2mm which is very good for 38,000miles. Now the tyres are scrap due to that defect after only 2.8mm of tread wear. Due to it being MOT time and in case the police should stop me for some reason I have had to buy four new tyres. It means that Hankook are expensive tyres when they have to be replaced after only 2.8mm of tread wear. I showed the tyre fault to the VW dealer and they were not interested. N Mould
May 20, 2020
Given 39% while driving a Mazda MX5 (225/45 R17) on a combination of roads for 0 average miles
Bought a Mazda MX5 NB svt with these tyres on. Almost killed me twice.
Undertseers like crazy in the wet, literally have cars pilling up behind me in winter time when i'm turning.
I know the car is a little tail happy in the wet, especially since it has an LSD, but this is ridiculous.
However, more or less okay in the dry.
I would 100% not recommend these tyres to anyone unless you only take your car out on sunny days or you're a thrill seeker who loves to drift around the place.
July 16, 2019
Given 36% while driving a MINI Cooper S Works (205/40 R18 W) on mostly country roads for 10,000 spirited miles
Outright dangerous in the wet. Massive understeer on wet roundabouts, and have to be extremely careful.

Dry grip, wear and price are fine.

Comfort is awful and so is road noise.

Very excited to be replacing them, going for Michelin PS4 after this experience.
October 18, 2018
Given 36% while driving a Mazda 6 Sport 2.3L (225/45 R18) on a combination of roads for 1,000 easy going miles
Recently bought a Mazda 6 2.5 sport. the handling on the Mazda is supposed to be brilliant but have noticed the car has these Accelera tyres on it.
the car is terrible in the dry especially in the corners. Hit a little hole etc then the car is thrown towards the hedge even at low speed. In the wet it is like ice skating. These have to be budget tyres? Getting some P zero's put on soon. In my opinion. AVOID!
September 18, 2018
Given 27% while driving a MINI One D (205/60 R16) on a combination of roads for 0 average miles
Had these on the rear of a mini when I bought it and vredstein sportrac 5 on fronts
At about 5mm they've totally given up in the wet
Makes for great oversteer but a bit on the dangerous side
Wouldn't get these again
April 22, 2018
Given 36% while driving a Toyota Altezza RS200Z (255/30 R19) on mostly town for 100 average miles
CAUTION WITH OPTING THESE IN LOW PROFILE.
After significant testing and lengthy court issue against Mag and Turbo for fitting these - the verdict is that the low profile Accelera tyre is considered not suitable to fit for low profile. The pattern and fit of these particular tyres has caused the turn in of the tyre at both low and high speed test to dismount themselves from the wheel. This has been tested multi times with the same result. I had major damage inflicted to my wheels as a result - Mag&Turbo/Accelera had no recourse until court ruled with independence test undertaken by AA compliance NZ.
In my opinion THESE TYRE SHOULD NOT BE SOLD.
October 29, 2017
Given 31% while driving a Alfa Romeo 156 2.0 TS Veloce (205/50 R16 V) on a combination of roads for 5,000 spirited miles
Once again, I bought a car which the previous owner tried to ruin by fitting very poor tyres. These may not be the worst tyres I've ever tried but in comparison to my other Alfa 156 which runs Pirelli P7 Cinturato tyres, these are truly poor.

The biggest issue is that until the front tyres wore down enough, the rear was unstable in both wet and dry conditions. Many of the suspension arms were new, the others good and even playing with the suspension geometry offered no improvement. The car runs straight and true but these tyres are just so poor. It is hard to gauge grip as feedback is poor and breakaway and recovery is not very controllable, enjoyable or recommended. Traction and braking are notably poor aspects.

Ride comfort and noise is not great and slightly worse than the Continental Premium Contact 2 tyres which were previously on the other 156. All tyres went out of balance and have been rebalanced with quite a lot of balance weights which I usually take as a sign of poor construction.

Wear is irrelevant but I'd say quite poor. In any case, the tyres' reduction in already poor performance means I just won't take the chance to wear these right down to the same level I would with premium brands or decent mid range tyres like Hankook.

My advice is either pay more for Hankook or Pirelli touring tyres or just simply save money and buy cheaper and better Rovelo tyres which I can honestly say are superior to these.
September 5, 2017
Given 81% while driving a Infiniti G37 (225/55 R18 W) on a combination of roads for 0 spirited miles
For a tire that I couldn't find absolutely, or almost no information at all, I've been trying to tell myself to get rid of it and get the tried and proven. But the more I test it's abilities in Rain, Light snow and Dry roads (I live in Seattle area), it handles smoothly. It could be that I'm driving on an G37X which is all wheel drive. Light snow, turning can make me slide forward instead of turning and rain is no problem at all.
March 14, 2017
Given 30% while driving a BMW 320 d (225/50 R16) on mostly country roads for 3,000 average miles
I had these on the back of my BMW 3 Series and i am sure they were trying to kill me. The slightest hint of a wet road and the back end would let go. Ran them for about 3000 miles. The final straw was when my wife was driving at about 60mph on a damp dual carriageway in a straight line and span the car. Luckily it was late at night and didn't hit anything. These were gone a couple of days later and uniroyals put on. Car was back to its old self again. Worst tyres i have ever had.
February 10, 2017
Given 24% while driving a Audi A1 (215/45 R16) on a combination of roads for 20,000 average miles
Horrendous tyres. Only thing good about them them is the dry grip. Everything else is appalling.

They were fitted to a 62 plate Audi A1. Couldn't corner in the wet, encountered very heavy understeer. Wouldn't recommend these tyres. These tyres came fitted to the car when I brought it.

Fitted Toyo tyres and already I've seen a massive improvement.
December 24, 2016
Given 13% while driving a Vauxhall Astra 1.6 SXi (205/55 R16) on mostly town for 2,000 easy going miles
Do not buy these tyres if you value your life or car.
So many people on this site just unfortunately do not know enough about tyres to post reviews.
These tyres are dangerous I am in the process of removing a relatively new set from my new partners car.
Let's look at the facts these are cheap as chips tyres wet grip E you only get what you pay for.
Big brand company's spend thousands of pounds developing New tyres experimenting with different compounds, rubbers and construction unfortunately the same cannot be said for these.
My local tyre dealer who I have known for years does not know how these tyres get a European safety rating ! Yes that bad. The handling is terrible and with over 5mm of tread left my partner who is no racing driver does not understand what is wrong with her car skidding and feeling unsafe on wet roads I new straight away its terrible tyres ! Going to change the lot asap.
These are budget price and ditch finding road holding don't be fooled by people rating these tyres as good if you want good then do yourself a favour and spend some money on a quality brand or at least a good quality mid range tyre. Remember your life and car are worth it as this is the only thing between you and the road. Enough said I think.
October 19, 2016
Given 39% while driving a Audi A3 Sportback (225/45 R17) on a combination of roads for 23 average miles
Just come back from having two of these tyres replaced on the front of an A3.The tyres had come supplied by a dealer with the car 2 years ago.

The best thing you can say is they don't wear quickly. Or much at all. 23,000 miles and still legal. I suspect the rubber compound is very hard.

Bad news? The left tyre developed a large radial crack on the inside wall that I only spotted by chance. When both tyres were removed they had very uneven wear. Tyre pressures were spot on.

Wet grip was poor, road noise was horrendous and the handling awful.

Replaced with some Pirelli's (not my first choice but it was a distress buy) and my ears are already thanking me.

Chap at the garage said he often see's Acellera tyres come in with the radial cracks on the inner and outer wall.

I'd avoid these tyres.
October 4, 2016
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