CarCostCheck

Vauxhall Monaro

Reliability, estimated running costs, and MOT data across 4 model years from 743 MOT tests in 2024.

Avg Pass Rate

86%

Total Tests

743

Highest Pass Rate

2006 (92%)

Years Covered

4

About the Vauxhall Monaro

The Vauxhall Monaro was MOT tested 743 times in 2024 (DVSA data, retests included) across 4 model years (2004 to 2007), with an average pass rate of 86%. That's slightly above the average of 82% across all models in our data. Our records list petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 2006 model has the highest pass rate at 92% from 230 tests. The 2004 model has the lowest at 82%. The 10 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.

Reliability Trend

Newer Vauxhall Monaros pass their MOT more often than older ones, by 7 percentage points on average, which is mostly down to age and wear.

Mileage Across Years

The oldest model in our data (2004) averages 88,110 miles, while the newest (2007) averages 59,933 miles.

Estimated Running Costs

Fuel (Petrol, 5967cc)
£1,958
Road Tax
£790
MOT Test
£55
Predicted Repairs
£350
Total per year£3,153
Per month£263/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2007 details

How reliable is the Vauxhall Monaro?

vs average of all models+4% (82% avg)
vs Vauxhall brand average+2% (84% avg)
Best to worst year spread10 percentage points
Reliability trendImproving over years

Vauxhall Monaro by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

YearPass RateTestsAvg Mileage
200785%9159,933 mi
200692%23064,233 mi
200585%22173,102 mi
200482%20188,110 mi

Questions about the Vauxhall Monaro

Is the Vauxhall Monaro reliable?

Across its 4 model years in our data (2004 to 2007), the Vauxhall Monaro averages an 86% MOT pass rate, from 743 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points above the average of 82% across all models in the same data. The 2006 model has the highest pass rate of the years with at least 100 tests, at 92%.

Which year Vauxhall Monaro has the best MOT pass rate?

Of the years with at least 100 tests, the 2006 Vauxhall Monaro has the highest MOT pass rate at 92%, while the 2004 model has the lowest at 82%, a 10 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Are newer Vauxhall Monaros more reliable?

Newer Vauxhall Monaros pass their MOT more often than older ones, by 7 percentage points on average, which is mostly down to age and wear.

Vauxhall Monaro Guides & Articles

Checking a specific Vauxhall Monaro?

Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.

GB

Free instant check using official DVSA and DVLA data