MG MGB

25,090 on UK roads in 2025-328 vs 2024

On the road

25,090

25,090 licensed

Change vs 2024

-1.3%

-328 cars

New in 2025

first-time registrations

Electrified

hybrid, plug-in & battery

The MG MGB has a steady presence on UK roads, with 25,090 licensed in 2025 - down 1.3% on 2024. 9 were registered new in 2025. The fleet is overwhelmingly petrol (100%), with most in the 1.6-2.0L class. Most date from the Before 2000 era.

How many are left?

Licensed MG MGB cars on the road over time

New registrations

First-time registrations per year

What the typical MG MGB looks like

Fuel, engine size and age across every MG MGB on the road today.

Fuel mix

Current split

25,090total

Petrol100.0%
Diesel0.0%
Battery Electric0.0%
Other0.0%

Engine size

Cars on the road by engine capacity

Electric5
Under 1.0L4
1.0-1.6L11
1.6-2.0L23,062
2.0-3.0L512
Over 3.0L1,496

How old are they?

Share of cars by the year they were first registered

Before 2000100%
2000-20040%
2010-20140%
2015-20190%
2020-20250%

MOT & reliability

2025 MOT data

How a MG Mgb holds up at its MOT and how it's driven - from 362 tests, tracked across 2022-2025.

First-time pass rate

Average for its class

81%

362 MOT tests in 2025 · 316 first-time

Pass rate over time

2022

82.1%

2023

83%

2024

84.5%

2025

81%

▼ 1.1 pts since 2022

Pass rate by age

First-time pass rate by the car's age (tested in 2025)

Too new for an age breakdown - most haven't reached MOT age (3 years) yet, so there isn't enough history to chart.

How a MG Mgb is driven

tracked across 2022-25

How much it's driven

miles a year, from 351 cars tracked across years

840miles a year · low use

98.9%

low · <5k

0.3%

avg · 5-15k

0.9%

high · 15k+

Most cover 113-822 miles a year (median 347).

Miles driven by age

Yearly mileage as the car ages

Driven most when newer, easing as it gets older.

Mileage & condition

Typical mileage at test

Odometer when tested (2025)

38,873

5,527middle 50%: 13,263-60,87884,430

Typical odometer rising: 39,217 → 40,946 → 40,267 → 38,873

Holds up by mileage

Pass rate as the odometer climbs

Under 40k

79.3%

40-80k

81.7%

80-120k

86.4%

Petrol vs diesel

First-time pass rate by fuel

Not enough data.

A 2025 MG Mgb passes first time 81% of the time - above the 77.6% UK average, and easing slightly year on year. The typical one is driven about 840 miles a year, and reliability is mostly about miles: 79.3% of low-mileage cars pass versus 86.4% past 120k.

Why a MGB fails its MOT

2025 MOT data

Of 60 first-time fails, here's what gets flagged most. Most cars fail on more than one item, so shares add up past 100%.

Where a MGB fails

Share of failed tests, by area

Brakes38.3%

Lamps & electrical38.3%

Visibility35%

Suspension16.7%

Steering11.7%

Exhaust & emissions10%

Body & structure10%

Seat belts3.3%

Top specific defects

Exact items most often recorded as the reason a car failed

Windscreen washers not working or not providing sufficient fluid to clear the windscreen19

Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle.11

Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc6

A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED5

Significant brake effort recorded with no brake applied indicating a binding brake5

The aim of a headlamp is not within limits laid down in the requirements5

Audible warning inoperative4

Parking brake efficiency below minimum requirement4

A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning4

Emissions levels exceed default limits4

20% flagged dangerous·2.4 defects per fail·60 fails analysed

MG MGB - frequently asked

How many MG MGB are left in the UK?

There are 25,090 MG MGB cars still licensed on UK roads in 2025, down 1.3% on 2024.

How many new MG MGB were registered in 2025?

9 brand-new MG MGB cars were first registered in 2025.

What fuel does the typical MG MGB use?

Most are petrol - about 100% of all MG MGB on the road, with the majority in the 1.6-2.0L engine class. In total, 0% are electrified (hybrid, plug-in or battery).

How old is the typical MG MGB?

Most MG MGB cars on the road today date from the Before 2000 era.

How reliable is the MG MGB?

81% of MG MGB cars pass their MOT first time, compared with a UK average of 77.6% across all cars. The typical tested MG MGB has around 33,433 miles on the clock.

Buying a MG MGB?

Before you buy a specific MG MGB, run its registration through AnalyzeMyCar for MOT history, mileage checks, service history and valuation.

Check a car

What the typical MG MGB looks like

Fuel, engine size and age across every MG MGB on the road today.

Fuel mix

Current split

25,090total

Petrol100.0%
Diesel0.0%
Battery Electric0.0%
Other0.0%

Engine size

Cars on the road by engine capacity

Electric5
Under 1.0L4
1.0-1.6L11
1.6-2.0L23,062
2.0-3.0L512
Over 3.0L1,496

How old are they?

Share of cars by the year they were first registered

Before 2000100%
2000-20040%
2010-20140%
2015-20190%
2020-20250%

MOT & reliability

2025 MOT data

How a MG Mgb holds up at its MOT and how it's driven - from 362 tests, tracked across 2022-2025.

First-time pass rate

Average for its class

81%

362 MOT tests in 2025 · 316 first-time

Pass rate over time

2022

82.1%

2023

83%

2024

84.5%

2025

81%

▼ 1.1 pts since 2022

Pass rate by age

First-time pass rate by the car's age (tested in 2025)

Too new for an age breakdown - most haven't reached MOT age (3 years) yet, so there isn't enough history to chart.

How a MG Mgb is driven

tracked across 2022-25

How much it's driven

miles a year, from 351 cars tracked across years

840miles a year · low use

98.9%

low · <5k

0.3%

avg · 5-15k

0.9%

high · 15k+

Most cover 113-822 miles a year (median 347).

Miles driven by age

Yearly mileage as the car ages

Driven most when newer, easing as it gets older.

Mileage & condition

Typical mileage at test

Odometer when tested (2025)

38,873

5,527middle 50%: 13,263-60,87884,430

Typical odometer rising: 39,217 → 40,946 → 40,267 → 38,873

Holds up by mileage

Pass rate as the odometer climbs

Under 40k

79.3%

40-80k

81.7%

80-120k

86.4%

Petrol vs diesel

First-time pass rate by fuel

Not enough data.

Why a MGB fails its MOT

2025 MOT data

Of 60 first-time fails, here's what gets flagged most. Most cars fail on more than one item, so shares add up past 100%.

Where a MGB fails

Share of failed tests, by area

Brakes38.3%

Lamps & electrical38.3%

Visibility35%

Suspension16.7%

Steering11.7%

Exhaust & emissions10%

Body & structure10%

Seat belts3.3%

Top specific defects

Exact items most often recorded as the reason a car failed

Windscreen washers not working or not providing sufficient fluid to clear the windscreen19

Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle.11

Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc6

A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED5

Significant brake effort recorded with no brake applied indicating a binding brake5

The aim of a headlamp is not within limits laid down in the requirements5

Audible warning inoperative4

Parking brake efficiency below minimum requirement4

A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning4

Emissions levels exceed default limits4

20% flagged dangerous·2.4 defects per fail·60 fails analysed

MG MGB - frequently asked

How many MG MGB are left in the UK?

There are 25,090 MG MGB cars still licensed on UK roads in 2025, down 1.3% on 2024.

How many new MG MGB were registered in 2025?

9 brand-new MG MGB cars were first registered in 2025.

What fuel does the typical MG MGB use?

Most are petrol - about 100% of all MG MGB on the road, with the majority in the 1.6-2.0L engine class. In total, 0% are electrified (hybrid, plug-in or battery).

How old is the typical MG MGB?

Most MG MGB cars on the road today date from the Before 2000 era.

How reliable is the MG MGB?

81% of MG MGB cars pass their MOT first time, compared with a UK average of 77.6% across all cars. The typical tested MG MGB has around 33,433 miles on the clock.

Buying a MG MGB?

Before you buy a specific MG MGB, run its registration through AnalyzeMyCar for MOT history, mileage checks, service history and valuation.

Check a car