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Radar RPX800 View Gallery (1)
155-245/35-70 R13-18 74 sizes 2017

Radar RPX800

Radar Tires High Performance Summer

The Radar RPX800 is a High Performance Summer tire designed to be fitted to Passenger Cars.

4.9
Tire Reviews Score Based on Professional Tests & User Reviews
High Confidence View Breakdown
Dry Grip
75%
Wet Grip
62%
Road Feedback
68%
Handling
53%
Wear
88%
Comfort
67%
Buy again
55%
6 Reviews
67% Average
84,100 miles driven
4 Tests (avg: 31st)
Radar RPX800

Radar RPX800

Summer Economy
BETA
4.9 / 10
Based on Professional Tests & User Reviews · High Confidence · Updated 23 Feb 2026

The Tire Reviews Score is the most comprehensive tire 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
Category Scores
Comfort
83.5
0.32x / 2 tests
Wet
73.3
2x / 9 tests
Dry
58.9
1.8x / 5 tests
Value
57.1
0.42x / 5 tests
Cross-Category Performance

Cross-category scores are derived metrics that combine data from multiple test disciplines to evaluate real-world performance characteristics.

Braking
71.6
9 tests
Handling
40
2 tests
Score Components
Professional Tests
Weight: 80%
Tests: 4
Publications: 3
Period: 2019 - 2024
User Reviews
Weight: 15%
Reviews: 6
Avg Rating: 66.8%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.33
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tire 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
Data Sources
TestPublicationDateSizePositionMetrics
2024 Summer Tire Market Overview Auto Bild 2024 205/55 R16 45/55 2 metrics
2023 ADAC Summer Tire Test ADAC 2023 205/55 R16 43/50 12 metrics
2021 53 Summer Tire Braking Test Auto Bild 2021 205/55 R16 23/53 2 metrics
2019 Swedish Summer Tire Test Test World 2019 205/55 R16 12/13 5 metrics
All Tests
View Test Results
4
Tests
31st
Average
12th
Best
45th
Worst
Latest Tire Test Results
2024 Summer Tire Market Overview
205/55 R16 • 2024
45th/55
2023 ADAC Summer Tire Test
205/55 R16 • 2023
43rd/50
2021 53 Summer Tire Braking Test
205/55 R16 • 2021
23rd/53
Size Fuel Wet Noise
14 inch
175/65R14 82 H C C 70
185/60R14 82 H C B 70
185/70R14 88 H C C 70
165/70R14 81 T D C 70
165/70R14 85 H XL C C 71
175/65R14 86 H XL C C 71
185/60R14 86 H XL C B 71
15 inch
195/65R15 91 H C A 71
185/65R15 88 H C B 70
195/65R15 91 V C A 71
195/55R15 89 V XL C B 72
185/65R15 92 H XL C B 71
195/65R15 95 V XL C A 72
16 inch
205/55R16 91 V C A 71
205/60R16 96 V XL C B 72
215/60R16 99 V XL C B 72
205/55R16 94 V XL C A 72
View All Sizes and EU Label Scores for the Radar RPX800 >>

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Top 3 Radar RPX800 Reviews

Given 58% while driving a Vauxhall Vectra cdti (120) (215/55 R16 W) on a combination of roads for 600 spirited miles
Had these fitted last week and drove about 600 miles on various different road conditions. They do their job as long as you don't drive fast. Around town they're very nice and confortable, grip well around roundabouts and even when the speed is higher, they still grip for a bit, however, they are quite predictable and you can almost pinpoint the milisecond they're about to give out. Braking, they're not very grippy, in fact, they feel quite "greasy" and bouncy. On the motorway they reveal themselves as a cheap tire. They're noisy. Very noisy. In fact, these are probably the noisiest tires i've ever had fitted to my car. All in all, for the £50 fitted i paid for them, they're decent enough and if it wasn't for the unconfortable noise above 60mph, i would consider them very good. Still, i will see if they can do the 15k miles i normally do a year,
Helpful 599
December 4, 2016
Given 44% while driving a Citroën 2.0 HDi 110 (205/60 R15 H) on mostly town for 2,000 easy going miles
Radar RPX800 M+S (MUD AND SNOW)
These were on my Citroen Xantia (HDi 110 Hatchback) on purchase, OK in the dry around town and quiet on Motorways very easy to provoke understeer on wet/damp roads even on a light throttle I can't imagine what they'd be like in the snow!!!
Helpful 637
September 21, 2015
Given 70% while driving a Toyota Camry (225/45 R17) on a combination of roads for 5,000 spirited miles
It is like riding on balloons. I love and dislike it a bit. It is super comfortable on long american highways. The stop and go gives quite a bit of dive and nose up than I would like but it would be perfect for old folks.
It isolates the road noise the best I have had. Better than the Michelin. That has really made me love this tire. Around the corners it is something else, because of its balloon like softness, the sidewalls do not have enough stiffness so around fast corners there is a bit of screetchiness. There are times at 10 miles per hour that I get screeching as well and everyone looks at me as if I was speeding. I would totally recommend this for old folks who love cushy soft supple ride. Young guys looking for cornering I would recommend staying away from it.
This is the first I have heard of these tires and I would say they are damn good.
Helpful 623
October 13, 2013

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Latest Radar RPX800 Reviews

Given 70% while driving a Honda Civic 1.8 5 door (225/45 R17) on a combination of roads for 6,000 average miles
I had this tire fitted after a puncture. It was sold as a budget tire so I wasn't expecting a great deal from it. The handling in wet conditions is not great so I'm very glad I don't have 4 of these tires on my car. I notice loss of grip mainly when going around roundabouts in wet conditions. The tire does seem to be hard wearing so you will get the mileage out of it, however I wonder if this same fact is contributing to loss of grip when cornering?
Helpful 587
October 14, 2012
Given 84% while driving a Ford KA 1.3 (165/65 R13 H) on a combination of roads for 3,000 spirited miles
An interesting tire. Replaced a mix of Toyo 350 and Contis. More than enough dry grip, more comfortable than the Toyo and as quiet as the Conti. Seem to be wearing very well too.

Wet grip is variable. On normal wet roads they're good, and braking seems to be excellent (for a budget tire) on any road, however they seem to suffer on the warm greasy roads we're getting in the UK at the moment due to a wet summer. I'm not sure if it's the tires or the roads, but sometimes they'll randomly understeer.

For the price I'm pretty sure they're better than any other budget tire and a lot of so called mid range tires.
Helpful 605
June 13, 2012
Given 81% while driving a Volkswagen golf 2.0 gt tdi (205/55 R16 V) on a combination of roads for 67,500 average miles
Good value and good performance - excellent mileage from my set
Helpful 684
May 9, 2012
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