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MORGAN PLUS 8 (1992)

Running costs, reliability data, and common problems from 33 real MOT tests.

Annual Cost

£2,757

£230/month

MOT Pass Rate

85%

Good

Road Tax

£760

Based on CC/year

Insurance

Grp 35-50

3947cc Petrol

Solid Option

85% pass rate, £2757/year to run. Close to the national average.

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Petrol3947cc34 years old33 tests36k miles avg

Annual Running Costs

Fuel (Petrol, 3947cc)

~30 mpg

£1,592
Road Tax

Based on 3947cc

£760
MOT Test
£55
Predicted Repairs
£350
Total per year£2,757
Per month£230/mo
Per week£53/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

85% MOT pass rate(Good)
0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the MORGAN brand average of 92%.

At 34 years old, 85% of MORGAN PLUS 8s from 1992 passed their MOT first time in 2026. That's based on 33 tests across the UK. The average mileage at this age is 36,290 miles.

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How Does It Compare?

Rank among 1992 cars44th of 178(top 25%)
Rank among MORGAN models92th of 104(top 88%)
vs national average+3%(82% avg)
vs 1992 cars average+8%(77% avg)
vs MORGAN average-7%(92% avg)

Mileage Analysis

36,290

Average miles

vs

251,600

Expected for age

The average 1992 MORGAN PLUS 8 has 36,290 miles on the clock, which is significantly below the expected 251,600 miles for a 34-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?

The most reliable year is the 2001 model with a 95% MOT pass rate, while the 1996 model has the lowest at 82%. The 1992 sits between the two at 85%.

MORGAN PLUS 8 by Year

YearPass RateTestsAvg Mileage
200494%3427,166 mi
200393%4529,862 mi
200290%5927,471 mi
200195%9429,965 mi
200091%11032,354 mi
199995%9330,173 mi
199892%9732,399 mi
199793%14528,128 mi
199682%10627,380 mi
199597%3140,788 mi
199494%3635,443 mi
199393%4133,823 mi
199285%3336,290 mi
199080%4041,217 mi

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About the 1992 MORGAN PLUS 8

The 1992 MORGAN PLUS 8 is a performance with a 3947cc petrol engine. 33 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 25% of all 1992 cars for reliability.

With an average of 36,290 miles at 34 years old, 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 £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 1992 MORGAN PLUS 8?

Total estimated annual running cost is £2,757 230/month), broken down as £1592 fuel, £760 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 show better MOT pass rates than older ones, with an average improvement of 4 percentage points.

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 2001 model has the highest pass rate at 95%. Note: with only 33 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 1992 MORGAN PLUS 8's fuel type, age, and engine size, these are the most likely problem areas to check.

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 annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
MORGAN PLUS 8(1992)85%£1592£760Grp 35-50£2757
PORSCHE 911(1990)91%£1592£250Grp 35-50£2097-£660
LAND ROVER RANGE ROVER(1994)80%£1592£250Grp 35-50£2247-£510
JAGUAR XJS(1993)84%£1592£250Grp 35-50£2247-£510
JAGUAR XJ(1994)86%£1592£250Grp 35-50£2247-£510

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.

Related Morgan Models

Explore other Morgan cars or similar models in the same category.

Related Guides

In-depth articles relevant to the Morgan Plus 8.

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