Subaru Impreza 1999: MOT failure rate for its age

29.6% of 3,137 MOT tests of the Subaru Impreza first registered in 1999 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 99.0 (95% CI 92.6–105.4; 100 = normal for this model at that age): the 1999 build year is no different from other years of the same model at the same age. This is a rough estimate from a smaller sample.

Subaru Impreza built in 1999 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	29.6	%	all ages tested	2019–2024	3137
Index against this model at the same age (95% CI 92.6–105.4)	99.0	index	100 = normal for this model at that age	2019–2024	3137
Rank among this model's 16 build years	10	of 16	1 = fails least for its age	2019–2024	3137
Tested in 2024	313	tests	median 102,501 miles	2024	313

Built 1999 against Subaru Impreza normal for the age: first-time MOT failure share at each age, age 20: 30.8% vs 31.7%; age 21: 29% vs 29.1%; age 22: 28.5% vs 28.2%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.

Check a 1999 Subaru Impreza by registration · All Subaru Impreza MOT statistics · Download the build-year table (CSV)

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).

How does the 1999 Subaru Impreza fail at each age?

Cars built in 1999 were tested at ages 20 to 22 between 2019 and 2024. Each row compares their first-time failure share with what this model normally shows at that age, after allowing for the overall failure level of each test year.

Subaru Impreza built 1999: first-time MOT failure by age, against the model's normal rate at that age (2019–2024)
Age	Tests	Failed, %	95% interval	Normal for this model at that age, %	Index (100 = normal)
20	1,231	30.8	28.3–33.4	31.7	97.2
21	983	29	26.2–31.9	29.1	99.7
22	923	28.5	25.7–31.5	28.2	101

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,137 (initial tests) · Method: normal rate = this model's first-time failure share at that age across its build years (cells of 400+ tests), adjusted for each test year's overall level; cells of 30+ tests, under 500 marked rough · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

What fails most on the 1999 Subaru Impreza?

The most common failure group on cars built in 1999 is lamps, reflectors and electrical equipment: 24.3 items per 100 first tests, against 24.6 across all build years of the Subaru Impreza. These counts are not age-adjusted: cars built in 1999 were tested at ages 20 to 22.

Failure items per 100 first tests, Subaru Impreza built 1999 against the Subaru Impreza in all build years (2019–2024, not age-adjusted)
Failure group	Built 1999, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	24.3	24.6	1,242
Suspension	22.6	20	1,156
Noise, emissions and leaks	15.3	13.9	784
Brakes	12.7	10.7	648
Body, chassis, structure	12.3	10.6	629

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 5,117 (initial tests of this build year) · Method: failure items grouped by DVSA's top-level defect groups, per 100 initial tests; groups with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

How does 1999 compare with the years around it?

Among the 16 published build years of the Subaru Impreza, 1999 ranks 10 (1 = fails least for its age). 1998: index 103.6. 2000: index 97.2.

Subaru Impreza build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
1998	103.6	94.1–113.2	no different (rough estimate)	1,455
1999	99.0	92.6–105.4	no different (rough estimate)	3,137
2000	97.2	92.1–102.3	no different	4,836
2001	114.3	109.5–119.1	worse	6,418
2002	105.2	101.1–109.2	worse	8,306
2003	102.0	98.8–105.2	no different	12,636
2004	93.3	90.2–96.4	better	12,482
2005	95.3	92.5–98.2	better	15,286
2006	98.3	95.0–101.5	no different	12,157
2007	100.6	97.4–103.8	no different	12,984
2008	99.7	95.4–104.0	no different	7,326
2009	92.4	87.4–97.3	better	5,259
2010	97.6	92.5–102.8	no different	5,354
2011	89.4	77.1–101.6	no different (rough estimate)	882
2012	52.0	33.7–70.3	better (rough estimate)	234
2014	97.4	73.4–121.5	no different (rough estimate)	272

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 109,024 (initial tests) · Method: observed failures against those expected for the same model at the same ages, test-year level adjusted; verdict follows the printed one-decimal bound · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

How to cite this page

MOT Risk Index (2026). Subaru Impreza 1999 MOT statistics (data release dvsa-2024-v2; full dataset motriskindex-families-2024-v5, DOI 10.5281/zenodo.22975051), updated 30 September 2026. motriskindex.co.uk/cars/subaru-impreza/1999/

How every figure is calculated: methodology. Age, test year and build year are tied together (age = test year − build year), so the test-year level is taken as observed, not estimated.

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