Rolls-Royce Dawn (2018)
Estimated running costs and MOT pass rates from 392 MOT tests in 2024.
Annual Cost
£2,413
£201/month
MOT Pass Rate
94%
Excellent
Road Tax
£200
Standard rate/year
Est. Insurance
Grp 35-50
6600cc Petrol
Great Choice
94% pass rate, £2,413/year to run. 12 points above average.
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Annual Running Costs
~30 mpg
Standard rate (from April 2017)
Low estimate due to excellent reliability
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. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).
Reliability Verdict
Excellent reliability. Very few MOT failures. That's 12 points above the average of 82% across all models in our data.
94% of MOT tests on Rolls-Royce Dawns from 2018 ended in a pass in 2024, when they were about 6 years old. That's based on 392 tests across the UK, retests included. The average mileage recorded at those tests was 17,677 miles.
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How Does It Compare?
Mileage Analysis
17,677
Average miles
44,400
Expected for age
The average 2018 Rolls-Royce Dawn had 17,677 miles on the clock at its 2024 MOT, which is significantly below the expected 44,400 miles for a 6-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 2017 model has the highest MOT pass rate at 99%, while the 2018 model has the lowest at 94%. Consider a different year if reliability is a priority. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Rolls-Royce Dawn by Year
Similar Cars to Consider
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About the 2018 Rolls-Royce Dawn
The 2018 Rolls-Royce Dawn is a luxury car. Our records list a 6600cc petrol engine, though engines vary between versions. 392 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. It ranks in the top 21% of all 2018 models for MOT pass rate.
With an average of 17,677 miles recorded at its 2024 MOT tests, Rolls-Royce Dawn 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.
2018 Rolls-Royce Dawn Fuel Costs
The 6600cc 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 2018 Rolls-Royce Dawn?
Total estimated annual running cost is £2,413 (£201/month), broken down as £1,958 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Rolls-Royce Dawn Reliability Trend
Older Rolls-Royce Dawns tend to have better MOT pass rates than newer ones, with an average decline of 4 percentage points across model years.
Buying a Used 2018 Rolls-Royce Dawn
At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage.
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 outAt 8 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.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
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 2018 Rolls-Royce Dawn 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 Dawn(2018) | 94% | £1,958 | £200 | Grp 35-50 | £2,413 |
| Ferrari 812 Superfast S-A(2019) | 98% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Rolls-Royce Cullinan V12 Auto(2019) | 100% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Rolls-Royce Wraith(2017) | 100% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Lamborghini Aventador(2018) | 96% | £1,958 | £200 | Grp 35-50 | £2,413same |
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 2018 Rolls-Royce Dawn
Is the 2018 Rolls-Royce Dawn reliable?
Excellent reliability. Very few MOT failures. 94% of MOT tests on 2018 Rolls-Royce Dawns ended in a pass, from 392 tests (DVSA MOT data for tests in 2024, retests included). That's 12 points above the average of 82% across all models in the same data.
How much does a 2018 Rolls-Royce Dawn cost to run?
Our estimate is £2,413 a year (£201 a month): £1,958 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.
What is the MOT pass rate for a 2018 Rolls-Royce Dawn?
94% of 392 MOT tests on the 2018 Rolls-Royce Dawn ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 126th of 607 models first registered in 2018 (top 21%).
Which year Rolls-Royce Dawn has the best MOT pass rate?
Of the years with at least 100 tests, the 2017 Rolls-Royce Dawn has the highest MOT pass rate at 99% and the 2018 the lowest at 94%. Newer cars usually pass more often simply because they are younger and have done fewer miles.
What is the average mileage for a 2018 Rolls-Royce Dawn?
The average mileage recorded at MOT tests on the 2018 Rolls-Royce Dawn is 17,677 miles, which is significantly below the expected 44,400 miles for a 6-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
Related Rolls-Royce Models
Explore other Rolls-Royce cars or similar models in the same category.
Rolls-Royce Cullinan V12 Auto
2019 · 6749cc Petrol
Rolls-Royce Wraith
2017 · 6592cc Petrol
Ferrari 812 Superfast S-A
2019 · 6496cc Petrol
Rolls-Royce Cullinan V12 Auto
2019 · 6749cc Petrol
Rolls-Royce Wraith
2017 · 6592cc Petrol
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