MG 3 build years & generations
The MG 3 has one named generation (2019-2024). See how each group of build years does at its MOT.
Which year is which
Build years & generations, side by side
Find the build years you're looking at and see which generation they are. You'll also see which group of build years the MOT figures come from.
Built 2019-2020
- Generation
- Mk1
- Figures from
- cars built 2017-2020
Counted with this generation only.
Built 2021-2024
- Generation
- Mk1
- Figures from
- cars built 2021 onwards
Counted with every car built from 2021.
“Figures from” is the group of build years behind each card's MOT figures. Years where one generation gave way to the next can sit in a wider group until there's enough history to split them.
By build-year group
How each group of build years performs
Each card shows MOT results for one group of MG 3 build years. “Age” means the car's age on the day of its MOT, not its build year. “25+” groups every test on cars aged 25 or older.
Built2021 onwards
Mk1 only
All Mk1 cars built from 2021. Newer cars join this group until there is enough MOT history to split it.
Fail rate at 4 years old (latest age)
16.3%
UK average for cars this age: about 1 in 8 (12.5%)
Ages with data
3 to 4 years old
MOT tests counted
6,152
Chart shows
Age at the MOT
Not the build year
2021 onwards
Mk1 only
All Mk1 cars built from 2021. Newer cars join this group until there is enough MOT history to split it.
Fail rate at 4 years old (latest age)
16.3%
UK average for cars this age: about 1 in 8 (12.5%)
Ages with data
3 to 4 years old
MOT tests counted
6,152
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 4 years old.
Built2017-2020
Mk1 only
These build years are all Mk1, so the figures are almost all from that generation.
Fail rate at 7 years old
23.3%
UK average for cars this age: about 1 in 6 (17.1%)
Ages with data
4 to 8 years old
MOT tests counted
14,365
Chart shows
Age at the MOT
Not the build year
2017-2020
Mk1 only
These build years are all Mk1, so the figures are almost all from that generation.
Fail rate at 7 years old
23.3%
UK average for cars this age: about 1 in 6 (17.1%)
Ages with data
4 to 8 years old
MOT tests counted
14,365
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 8 years old.
Built2013-2016
No generation name yet
We have MOT figures for these build years, but no generation name for them yet.
Fail rate at 12 years old (latest age)
21.9%
UK average for cars this age: about 1 in 4 (25.9%)
Ages with data
8 to 12 years old
MOT tests counted
8,996
Chart shows
Age at the MOT
Not the build year
2013-2016
No generation name yet
We have MOT figures for these build years, but no generation name for them yet.
Fail rate at 12 years old (latest age)
21.9%
UK average for cars this age: about 1 in 4 (25.9%)
Ages with data
8 to 12 years old
MOT tests counted
8,996
Chart shows
Age at the MOT
Not the build year
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Highest fail rate at 11 years old.