Morgan Roadster (2018)

Estimated running costs and MOT pass rates from 104 MOT tests in 2024.

Annual Cost

£2,563

£214/month

MOT Pass Rate

84%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 35-50

3721cc Petrol

Solid Option

84% pass rate, £2,563/year to run. Close to the average across all models.

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Petrol3721cc8 years old104 tests7k miles avg

Annual Running Costs

Fuel (Petrol, 3721cc)

~30 mpg

£1,958

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£2,563

Per month£214/mo

Per week£49/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. 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

84% 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 Morgan brand average of 92%.

84% of MOT tests on Morgan Roadsters from 2018 ended in a pass in 2024, when they were about 6 years old. That's based on 104 tests across the UK, retests included. The average mileage recorded at those tests was 7,425 miles.

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How Does It Compare?

Rank among 2018 models534th of 607(bottom 13%)

Rank among Morgan models90th of 100(bottom 11%)

vs average of all models+2%(82% avg)

vs 2018 models average-5%(89% avg)

vs Morgan average-8%(92% avg)

Mileage Analysis

7,425

Average miles

44,400

Expected for age

The average 2018 Morgan Roadster had 7,425 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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Morgan Roadster by Year

Year	Pass Rate	Tests	Avg Mileage
2019	93%	54	8,077 mi
2018	84%	104	7,425 mi
2017	90%	58	12,141 mi
2016	99%	73	17,467 mi
2015	91%	58	12,890 mi
2014	84%	89	15,018 mi
2013	98%	42	19,101 mi
2012	97%	31	17,537 mi
2011	96%	46	16,271 mi
2010	90%	93	19,088 mi
2009	98%	61	25,432 mi
2008	96%	49	22,877 mi
2007	92%	49	30,192 mi
2006	95%	40	38,419 mi
2005	96%	89	29,945 mi
2004	100%	80	30,899 mi

Similar Cars to Consider

Mercedes C

2016 · 3982cc Petrol

£3,153/year

88%

+4%

Audi A6

2016 · 3993cc Petrol

£3,153/year

89%

+5%

Porsche Cayenne

2019 · 3996cc Petrol

£2,413/year

95%

+11%

Porsche 911

2018 · 3996cc Petrol

£2,413/year

96%

+12%

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About the 2018 Morgan Roadster

The 2018 Morgan Roadster is a large-engined car. Our records list a 3721cc petrol engine, though engines vary between versions. 104 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 13% of 2018 models for MOT pass rate.

With an average of 7,425 miles recorded at its 2024 MOT tests, Morgan Roadster 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 Morgan Roadster Fuel Costs

The 3721cc 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 Morgan Roadster?

Total estimated annual running cost is £2,563 (£214/month), broken down as £1,958 fuel, £200 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 84% pass rate. Keeping on top of servicing will help avoid surprises.

Buying a Used 2018 Morgan Roadster

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 out

At 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 risk

Larger 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 risk

Shock 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 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 2018 Morgan Roadster 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
Morgan Roadster(2018)	84%	£1,958	£200	Grp 35-50	£2,563
Mercedes C(2016)	88%	£1,958	£790	Grp 35-50	£3,153+£590
Audi A6(2016)	89%	£1,958	£790	Grp 35-50	£3,153+£590
Porsche Cayenne(2019)	95%	£1,958	£200	Grp 35-50	£2,413-£150
Porsche 911(2018)	96%	£1,958	£200	Grp 35-50	£2,413-£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 2018 Morgan Roadster

Is the 2018 Morgan Roadster reliable?

Good reliability. Occasional issues but generally solid. 84% of MOT tests on 2018 Morgan Roadsters ended in a pass, from 104 tests (DVSA MOT data for tests in 2024, retests included). That's 2 points above the average of 82% across all models in the same data.

How much does a 2018 Morgan Roadster cost to run?

Our estimate is £2,563 a year (£214 a month): £1,958 fuel, £200 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 2018 Morgan Roadster?

84% of 104 MOT tests on the 2018 Morgan Roadster ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 534th of 607 models first registered in 2018 (bottom 13%).

What is the average mileage for a 2018 Morgan Roadster?

The average mileage recorded at MOT tests on the 2018 Morgan Roadster is 7,425 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.