VAUXHALL SENATOR (1991)
Running costs, reliability data, and common problems from 42 real MOT tests.
Annual Cost
£2,427
£202/month
MOT Pass Rate
88%
Good
Road Tax
£430
Based on CC/year
Insurance
Grp 30-42
2968cc Petrol
Solid Option
88% pass rate, £2427/year to run. 6 points above average.
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Annual Running Costs
~30 mpg
Based on 2968cc
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
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%. It also outperforms the VAUXHALL brand average of 84%.
At 35 years old, 88% of VAUXHALL SENATORs from 1991 passed their MOT first time in 2026. That's based on 42 tests across the UK. The average mileage at this age is 113,561 miles.
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Mileage Analysis
113,561
Average miles
259,000
Expected for age
The average 1991 VAUXHALL SENATOR has 113,561 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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About the 1991 VAUXHALL SENATOR
The 1991 VAUXHALL SENATOR is a large car with a 2968cc petrol engine. 42 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 25% of all 1991 cars for reliability.
With an average of 113,561 miles at 35 years old, VAUXHALL SENATOR 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 VAUXHALL SENATOR Fuel Costs
The 2968cc 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 VAUXHALL SENATOR?
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 88% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 1991 VAUXHALL SENATOR
At 35 years old, the VAUXHALL SENATOR 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 42 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 1991 VAUXHALL SENATOR's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 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 riskLarger 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 outAt 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 outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Clutch Wear
Watch outWith an average of 114k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
Service History
Low riskAlways 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 VAUXHALL SENATOR stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| VAUXHALL SENATOR(1991) | 88% | £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.
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