Morgan Plus 8 (1992)

Estimated running costs and MOT pass rates from 33 MOT tests in 2024.

Annual Cost

£2,738

£228/month

MOT Pass Rate

85%

Good

Road Tax

£375

Estimated/year

Est. Insurance

Grp 35-50

3947cc Petrol

Solid Option

85% pass rate, £2,738/year to run. Close to the average across all models.

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Petrol3947cc34 years old33 tests36k miles avg

Annual Running Costs

Fuel (Petrol, 3947cc)

~30 mpg

£1,958

Road Tax

Pre-2001 engine size rate

£375

MOT Test

£55

Predicted Repairs

£350

Total per year£2,738

Per month£228/mo

Per week£53/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

85% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data. It falls below the Morgan brand average of 92%.

85% of MOT tests on Morgan Plus 8s from 1992 ended in a pass in 2024, when they were about 32 years old. That's based on 33 tests across the UK, retests included. The average mileage recorded at those tests was 36,290 miles.

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How Does It Compare?

Rank among 1992 models43rd of 172(top 25%)

Rank among Morgan models89th of 100(bottom 12%)

vs average of all models+3%(82% avg)

vs 1992 models average+8%(77% avg)

vs Morgan average-7%(92% avg)

Mileage Analysis

36,290

Average miles

236,800

Expected for age

The average 1992 Morgan Plus 8 had 36,290 miles on the clock at its 2024 MOT, which is significantly below the expected 236,800 miles for a 32-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

Of the years with at least 100 tests, the 1997 model has the highest MOT pass rate at 93%, while the 1996 model has the lowest at 82%. The 1992 scores 85%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Morgan Plus 8 by Year

Year	Pass Rate	Tests	Avg Mileage
2004	94%	34	27,166 mi
2003	93%	45	29,862 mi
2002	90%	59	27,471 mi
2001	95%	94	29,965 mi
2000	91%	110	32,354 mi
1999	95%	93	30,173 mi
1998	92%	97	32,399 mi
1997	93%	145	28,128 mi
1996	82%	106	27,380 mi
1995	97%	31	40,788 mi
1994	94%	36	35,443 mi
1993	93%	41	33,823 mi
1992	85%	33	36,290 mi
1990	80%	40	41,217 mi

Similar Cars to Consider

Porsche 911

1990 · 3600cc Petrol

£2,588/year

91%

+6%

Land Rover Range Rover

1994 · 3950cc Petrol

£2,738/year

80%

-5%

Jaguar XJS

1993 · 3980cc Petrol

£2,738/year

84%

-1%

Jaguar XJ

1994 · 3980cc Petrol

£2,738/year

86%

+1%

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About the 1992 Morgan Plus 8

The 1992 Morgan Plus 8 is a large-engined car. Our records list a 3947cc petrol engine, though engines vary between versions. 33 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 25% of all 1992 models for MOT pass rate.

With an average of 36,290 miles recorded at its 2024 MOT tests, Morgan Plus 8 owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

1992 Morgan Plus 8 Fuel Costs

The 3947cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 1992 Morgan Plus 8?

Total estimated annual running cost is £2,738 (£228/month), broken down as £1,958 fuel, £375 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 85% pass rate. Keeping on top of servicing will help avoid surprises.

Morgan Plus 8 Reliability Trend

Newer Morgan Plus 8s pass their MOT more often than older ones, by 10 percentage points on average, which is mostly down to age and wear.

Buying a Used 1992 Morgan Plus 8

At 34 years old, the Morgan Plus 8 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 1997 model has the highest pass rate at 93%. Note: with only 33 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Timing Chain / Belt

Watch out

At 34 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 1992 Morgan Plus 8 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Morgan Plus 8(1992)	85%	£1,958	£375	Grp 35-50	£2,738
Porsche 911(1990)	91%	£1,958	£375	Grp 35-50	£2,588-£150
Land Rover Range Rover(1994)	80%	£1,958	£375	Grp 35-50	£2,738same
Jaguar XJS(1993)	84%	£1,958	£375	Grp 35-50	£2,738same
Jaguar XJ(1994)	86%	£1,958	£375	Grp 35-50	£2,738same

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 1992 Morgan Plus 8

Is the 1992 Morgan Plus 8 reliable?

Good reliability. Occasional issues but generally solid. 85% of MOT tests on 1992 Morgan Plus 8s ended in a pass, from 33 tests (DVSA MOT data for tests in 2024, retests included). That's 3 points above the average of 82% across all models in the same data.

How much does a 1992 Morgan Plus 8 cost to run?

Our estimate is £2,738 a year (£228 a month): £1,958 fuel, £375 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 1992 Morgan Plus 8?

85% of 33 MOT tests on the 1992 Morgan Plus 8 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 43rd of 172 models first registered in 1992 (top 25%).

Which year Morgan Plus 8 has the best MOT pass rate?

Of the years with at least 100 tests, the 1997 Morgan Plus 8 has the highest MOT pass rate at 93% and the 1996 the lowest at 82%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 1992 Morgan Plus 8?

The average mileage recorded at MOT tests on the 1992 Morgan Plus 8 is 36,290 miles, which is significantly below the expected 236,800 miles for a 32-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.