2020 Kia Proceed Gt-Line Isg — MOT failures & pass rate

Across 630 MOT tests analysed for the 2020 Kia Proceed Gt-Line Isg, the most common recorded failure areas were tyres, visibility and brakes. Its pass rate of 89.2% was below the average for cars of a similar age (90.6%). Higher-mileage examples failed more often — 15.9% in the 60-90k group versus 8.6% in the 0-30k group.

Pass rate

630

MOT tests analysed

10.8%

Fail rate

worse than

vs cars of similar age

Avg age at test (yrs)

How it compares

Fail rate for this model-year against the segment and national averages for cars of a similar age.

Top failure categories

Most common MOT failure areas — 2020 Kia Proceed Gt-Line Isg
#	Category	% of tests affected	Tests
1	Tyres	6.5%	41
2	Visibility	6.0%	38
3	Brakes	2.1%	13
4	Lighting & signalling	1.6%	10
5	Emissions & environmental	0.5%	3
6	Suspension	0.5%	3

Percentage of tests with at least one failure recorded in each category.

Most common specific failures

The exact components most often recorded as failures — more specific than the categories above.

Most frequently recorded failure items — 2020 Kia Proceed Gt-Line Isg
#	Failure item	Times recorded
1	Wipers	31
2	Tread depth	26
3	Washers	13
4	Brake pads	12
5	Headlamp aim	6
6	Pins and bushes	4

Top advisory categories

Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.

Most common MOT advisories — 2020 Kia Proceed Gt-Line Isg
#	Category	% of tests with advisory	Tests
1	Tyres	30.3%	191
2	Brakes	22.5%	142
3	Other defects	7.9%	50
4	Suspension	5.2%	33
5	Visibility	4.4%	28
6	Emissions & environmental	0.5%	3

Failure rate by mileage

Higher-mileage cars tend to fail more — often the most useful guide to real condition.

MOT fail rate by recorded mileage band.

Fail rate by recorded mileage — 2020 Proceed Gt-Line Isg
Mileage band	Tests	Fail rate
0-30k	325	8.6%
30-60k	256	12.5%
60-90k	44	15.9%

Failure rate by age

How this model-year's MOT fail rate climbs as the cars get older.

Trend over time

Fail rate by dataset year — 2020 Proceed Gt-Line Isg
Dataset year	Tests	Fail rate
2023	209	11.5%
2024	204	9.8%
2025	210	11.4%

What to check before buying a 2020 Proceed Gt-Line Isg

Before buying a 2020 Kia Proceed Gt-Line Isg, focus on the areas it most often fails on. Tyres accounted for 6.5% of tests for this year.

Tyres (6.5% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
Visibility (6.0% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Brakes (2.1% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.

Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.

Frequently asked questions

How many 2020 Kia Proceed Gt-Line Isgs pass their MOT?

89.2% of the 630 2020 Kia Proceed Gt-Line Isg MOT tests in this dataset passed — a 10.8% fail rate.

What is the most common MOT failure on a 2020 Kia Proceed Gt-Line Isg?

Tyres, recorded in 6.5% of tests, followed by visibility (6.0%).

Does the 2020 Proceed Gt-Line Isg get worse with mileage?

Its MOT fail rate rises from 8.6% in the 0-30k band to 15.9% in the 60-90k band.

Methodology & source. Based on 630 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.