Lexus RC 2018: MOT failure rate for its age

9.0% of 1,611 MOT tests of the Lexus RC first registered in 2018 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 87.3 (95% CI 73.1–101.5; 100 = normal for this model at that age): the 2018 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.

Lexus RC built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	9.0	%	all ages tested	2019–2024	1611
Index against this model at the same age (95% CI 73.1–101.5)	87.3	index	100 = normal for this model at that age	2019–2024	1611
Rank among this model's 6 build years	1	of 6	1 = fails least for its age	2019–2024	1611
Tested in 2024	394	tests	median 38,936 miles	2024	394

Built 2018 against Lexus RC normal for the age: first-time MOT failure share at each age, age 3: 7.2% vs 8.1%; age 4: 9.8% vs 11.7%; age 5: 9.6% vs 10.6%; age 6: 9.4% vs 10.8%. Axis from 0% to 20%. DVSA MOT bulk data, 2019–2024.

Check a 2018 Lexus RC by registration · All Lexus RC 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 2018 Lexus RC fail at each age?

Cars built in 2018 were tested at ages 3 to 6 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.

Lexus RC built 2018: 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)
3	401 (rough estimate)	7.2	5.1–10.2	8.1	89.5
4	420 (rough estimate)	9.8	7.3–13	11.7	83.5
5	396 (rough estimate)	9.6	7.1–12.9	10.6	90.5
6	394 (rough estimate)	9.4	6.9–12.7	10.8	86.7

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,611 (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 2018 Lexus RC?

The most common failure group on cars built in 2018 is tyres: 6.1 items per 100 first tests, against 7.8 across all build years of the Lexus RC. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, Lexus RC built 2018 against the Lexus RC in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Tyres	6.1	7.8	99
Visibility	5.4	4.3	87

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 1,621 (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 2018 compare with the years around it?

Among the 6 published build years of the Lexus RC, 2018 ranks 1 (1 = fails least for its age). 2017: index 106.5. 2019: index 88.5.

Lexus RC build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2015	109.9	90.7–129.1	no different (rough estimate)	970
2016	105.1	95.4–114.9	no different (rough estimate)	3,840
2017	106.5	93.6–119.3	no different (rough estimate)	2,293
2018	87.3	73.1–101.5	no different (rough estimate)	1,611
2019	88.5	72.0–105.0	no different (rough estimate)	1,239
2020	97.3	70.0–124.5	no different (rough estimate)	515

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 10,468 (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). Lexus RC 2018 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/lexus-rc/2018/

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.

Other pages for this model

Lexus RC 2015 · Lexus RC 2016 · Lexus RC 2017 · Lexus RC 2019 · Lexus RC 2020 · Lexus RC by postcode area · Lexus RC brakes failures · Lexus RC vehicle identification failures · Lexus RC lamps, reflectors and electrics failures · Lexus RC suspension failures · Lexus RC tyres failures · Lexus RC visibility failures