How much does a 1991 ALFA ROMEO SZ cost to run?

Estimated annual running cost is £2,427 (£202/month), including £1592 fuel, £430 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 1991 ALFA ROMEO SZ?

The 1991 ALFA ROMEO SZ has a 85% MOT pass rate based on 48 tests in 2026. This ranks 60 out of 179 cars from 1991.

ALFA ROMEO SZ (1991)

Q: Is the 1991 ALFA ROMEO SZ reliable?

Good reliability. Occasional issues but generally solid. 85% of ALFA ROMEO SZs from 1991 passed their MOT first time in 2026, based on 48 tests. That's 3 points above the national average of 82%.

Q: What is the average mileage for a 1991 ALFA ROMEO SZ?

The average mileage for a 1991 ALFA ROMEO SZ is 37,870 miles, which is significantly below the expected 259,000 miles for a 35-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

Running costs, reliability data, and common problems from 48 real MOT tests.

Annual Cost

£2,427

£202/month

MOT Pass Rate

85%

Good

Road Tax

£430

Based on CC/year

Insurance

Grp 30-42

2959cc Petrol

Solid Option

85% pass rate, £2427/year to run. Close to the national average.

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Petrol2959cc35 years old48 tests38k miles avg

Annual Running Costs

Fuel (Petrol, 2959cc)

~30 mpg

£1,592

Road Tax

Based on 2959cc

£430

MOT Test

£55

Predicted Repairs

£350

Total per year£2,427

Per month£202/mo

Per week£47/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 also outperforms the ALFA ROMEO brand average of 80%.

At 35 years old, 85% of ALFA ROMEO SZs from 1991 passed their MOT first time in 2026. That's based on 48 tests across the UK. The average mileage at this age is 37,870 miles.

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How Does It Compare?

Rank among 1991 cars60th of 179(top 34%)

Rank among ALFA ROMEO models52th of 158(top 33%)

vs national average+3%(82% avg)

vs 1991 cars average+7%(78% avg)

vs ALFA ROMEO average+5%(80% avg)

Mileage Analysis

37,870

Average miles

259,000

Expected for age

The average 1991 ALFA ROMEO SZ has 37,870 miles on the clock, which is significantly below the expected 259,000 miles for a 35-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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Similar Cars to Consider

MERCEDES 300

1992 · 2996cc Petrol

£2,247/year

83%

-2%

PORSCHE 911

1991 · 3164cc Petrol

£2,097/year

91%

+6%

PORSCHE 944

1990 · 2969cc Petrol

£2,247/year

85%

same

PORSCHE 968

1993 · 2990cc Petrol

£2,247/year

85%

same

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About the 1991 ALFA ROMEO SZ

The 1991 ALFA ROMEO SZ is a premium performance with a 2959cc petrol engine. 48 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 1991, the average MOT pass rate is 78%, and this model beats that benchmark.

With an average of 37,870 miles at 35 years old, ALFA ROMEO SZ 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 ALFA ROMEO SZ Fuel Costs

The 2959cc 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 1991 ALFA ROMEO SZ?

Total estimated annual running cost is £2,427 (£202/month), broken down as £1592 fuel, £430 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.

Buying a Used 1991 ALFA ROMEO SZ

At 35 years old, the ALFA ROMEO SZ 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. Note: with only 48 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 1991 ALFA ROMEO SZ's fuel type, age, and engine size, these are the most likely problem areas to check.

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 ALFA ROMEO SZ stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
ALFA ROMEO SZ(1991)	85%	£1592	£430	Grp 30-42	£2427
MERCEDES 300(1992)	83%	£1592	£250	Grp 30-42	£2247-£180
PORSCHE 911(1991)	91%	£1592	£250	Grp 35-50	£2097-£330
PORSCHE 944(1990)	85%	£1592	£250	Grp 30-42	£2247-£180
PORSCHE 968(1993)	85%	£1592	£250	Grp 30-42	£2247-£180

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.