Rolls-Royce Silver Spirit (1991)

Estimated running costs and MOT pass rates from 103 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

6750cc Petrol

Solid Option

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

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Petrol6750cc35 years old103 tests72k miles avg

Annual Running Costs

Fuel (Petrol, 6750cc)

~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 Rolls-Royce brand average of 95%.

85% of MOT tests on Rolls-Royce Silver Spirits from 1991 ended in a pass in 2024, when they were about 33 years old. That's based on 103 tests across the UK, retests included. The average mileage recorded at those tests was 72,266 miles.

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How Does It Compare?

Rank among 1991 models59th of 172(top half)

Rank among Rolls-Royce models70th of 76(bottom 10%)

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

vs 1991 models average+6%(79% avg)

vs Rolls-Royce average-10%(95% avg)

Mileage Analysis

72,266

Average miles

244,200

Expected for age

The average 1991 Rolls-Royce Silver Spirit had 72,266 miles on the clock at its 2024 MOT, which is significantly below the expected 244,200 miles for a 33-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 1994 model has the highest MOT pass rate at 94%, while the 1992 model has the lowest at 71%. The 1991 scores 85%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Rolls-Royce Silver Spirit by Year

Year	Pass Rate	Tests	Avg Mileage
1996	93%	110	71,336 mi
1995	92%	182	85,169 mi
1994	94%	108	61,845 mi
1993	77%	99	66,852 mi
1992	71%	132	73,837 mi
1991	85%	103	72,266 mi
1990	87%	314	73,793 mi

Similar Cars to Consider

Bentley Turbo

1990 · 6750cc Petrol

£2,588/year

93%

+8%

Bentley Mulsanne

1990 · 6750cc Petrol

£2,738/year

88%

+3%

Bentley Brooklands

1993 · 6750cc Petrol

£2,588/year

95%

+10%

Bentley Continental

1993 · 6750cc Petrol

£2,588/year

93%

+8%

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About the 1991 Rolls-Royce Silver Spirit

The 1991 Rolls-Royce Silver Spirit is a luxury car. Our records list a 6750cc petrol engine, though engines vary between versions. 103 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. Among all models from 1991, the average MOT pass rate is 79%, and this model beats that benchmark.

With an average of 72,266 miles recorded at its 2024 MOT tests, Rolls-Royce Silver Spirit 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.

1991 Rolls-Royce Silver Spirit Fuel Costs

The 6750cc 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 1991 Rolls-Royce Silver Spirit?

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.

Rolls-Royce Silver Spirit Reliability Trend

Newer Rolls-Royce Silver Spirits pass their MOT more often than older ones, by 12 percentage points on average, which is mostly down to age and wear.

Buying a Used 1991 Rolls-Royce Silver Spirit

At 35 years old, the Rolls-Royce Silver Spirit 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 1994 model has the highest pass rate at 94%.

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 35 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 1991 Rolls-Royce Silver Spirit 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
Rolls-Royce Silver Spirit(1991)	85%	£1,958	£375	Grp 35-50	£2,738
Bentley Turbo(1990)	93%	£1,958	£375	Grp 35-50	£2,588-£150
Bentley Mulsanne(1990)	88%	£1,958	£375	Grp 35-50	£2,738same
Bentley Brooklands(1993)	95%	£1,958	£375	Grp 35-50	£2,588-£150
Bentley Continental(1993)	93%	£1,958	£375	Grp 35-50	£2,588-£150

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 1991 Rolls-Royce Silver Spirit

Is the 1991 Rolls-Royce Silver Spirit reliable?

Good reliability. Occasional issues but generally solid. 85% of MOT tests on 1991 Rolls-Royce Silver Spirits ended in a pass, from 103 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 1991 Rolls-Royce Silver Spirit 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 1991 Rolls-Royce Silver Spirit?

85% of 103 MOT tests on the 1991 Rolls-Royce Silver Spirit ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 59th of 172 models first registered in 1991 (top half).

Which year Rolls-Royce Silver Spirit has the best MOT pass rate?

Of the years with at least 100 tests, the 1994 Rolls-Royce Silver Spirit has the highest MOT pass rate at 94% and the 1992 the lowest at 71%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 1991 Rolls-Royce Silver Spirit?

The average mileage recorded at MOT tests on the 1991 Rolls-Royce Silver Spirit is 72,266 miles, which is significantly below the expected 244,200 miles for a 33-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.