Kia
2,928 MOT tests analysed. sits above the UK fleet average — here's where Proceed GT Line Isgs pass, fail, and end up on the retest sheet.
That's 11.6 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
89.1%
Pass-after-fix
2.2%
Fail
8.5%
Avg miles
32,363
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
Performance by cohort
2 year bands · 2,928 tests
Pass rate is broadly flat across the cohorts — new and old Proceed GT Line Isg examples track each other at the test bay.
Pass
89.0%
Fail
7.9%
PRS
2.9%
Avg mileage at test
36,812 mi
Pass
89.3%
Fail
8.9%
PRS
1.6%
Avg mileage at test
28,860 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 862 MOT tests, the Proceed Gt-Line Isg returns 85.6% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is tyre tread under the limit. Wipers that don't clear the screen and a defective wiper blade round out the top three. Average tested mileage sits at 29,137, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
ABI Insurance Group
Below the fleet average — generally reasonable to insure. Lower groups cost less to insure; UK fleet average is around Group 22.
Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →
13–24
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Wiper blade missing or obviously not clearing the windscreen
46 occurrences · 1.6% of tests
Tyre tread depth not in accordance with the requirements
45 occurrences · 1.5% of tests
A tyre seriously damaged
41 occurrences · 1.4% of tests
Wiper blade defective
37 occurrences · 1.3% of tests
A tyre cords visible or damaged
30 occurrences · 1.0% of tests
a brake lining or pad worn below 1.5mm
25 occurrences · 0.9% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
22 occurrences · 0.8% of tests
Brake disc or drum significantly and obviously worn
13 occurrences · 0.4% of tests
A tyre seriously damaged
12 occurrences · 0.4% of tests
A tyre seriously damaged
10 occurrences · 0.3% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 4 failures
£160–£280
If every one of this Proceed GT Line Isg's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
Try the calculator
Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. Pass rates barely move across bands here, so the year you buy Kia Proceed GT Line Isg makes little measurable difference to MOT outcomes.
Best band to buy
89.3%
2021+ registration
the 2021-on band climbs to 89.3% — a 0.3-point improvement. Tests in this band average 28,860 miles — roughly 8K miles fewer on the clock than the older band. Failures here are mostly wear items: does not clear the windscreen effectively, blade defective — the structural issues that drag down older examples don't appear in the top-10 for this band. Post-2020 examples are early in their MOT life and generally show the cleanest records.
Band to be cautious about
89.0%
2018–2020 registration
On the 2018–2020 band, the data shows a 89.0% pass rate against a fleet average of 89.3% on the newer band. The main culprits logged at test: tread depth below requirements of 1.6mm, has a cut in excess of the…, and has ply or cords exposed. Average mileage on test for this band is 36,812 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2021+ (89.3% first-time pass). Worst band to avoid: 2018-2020 (89.0% pass). That's a 0.3-point spread across 1,289 older tests and 1,639 newer ones — year of build makes a material difference on this model.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Bosch Aerotwin wiper blades
Cheap wipers fail the test on smear streaks. Bosch Aerotwins last a winter and clear a screen properly.
Search Amazon UK
Item 02 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
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Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Proceed GT Line Isg and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.
