Smart (MCC) Forfour (2018)

Estimated running costs and MOT pass rates from 6,590 MOT tests in 2024.

Annual Cost

£1,780

£148/month

MOT Pass Rate

88%

Good

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 1-8

999cc Petrol

Solid Option

88% pass rate, £1,780/year to run. 6 points above average.

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Petrol999cc8 years old6,590 tests33k miles avg

Annual Running Costs

Fuel (Petrol, 999cc)

~50 mpg

£1,175

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£350

Total per year£1,780

Per month£148/mo

Per week£34/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

88% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the average of 82% across all models in our data. It also outperforms the Smart (MCC) brand average of 78%.

88% of MOT tests on Smart (MCC) Forfours from 2018 ended in a pass in 2024, when they were about 6 years old. That's based on 6,590 tests across the UK, retests included. The average mileage recorded at those tests was 32,534 miles.

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How Does It Compare?

Rank among 2018 models408th of 607(bottom half)

Rank among Smart (MCC) models7th of 83(top 9%)

vs average of all models+6%(82% avg)

vs 2018 models average-1%(89% avg)

vs Smart (MCC) average+10%(78% avg)

Mileage Analysis

32,534

Average miles

44,400

Expected for age

The average 2018 Smart (MCC) Forfour had 32,534 miles on the clock at its 2024 MOT, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Smart (MCC) Forfour by Year

Year	Pass Rate	Tests	Avg Mileage
2019	88%	3,224	26,615 mi
2018	88%	6,590	32,534 mi
2017	85%	8,284	39,590 mi
2016	82%	9,221	45,513 mi
2015	79%	9,848	52,006 mi
2007	70%	114	91,965 mi
2006	72%	831	99,878 mi
2005	74%	1,093	99,187 mi
2004	67%	401	106,805 mi

Similar Cars to Consider

Ford Fiesta

2016 · 998cc Petrol

£1,600/year

81%

-7%

Vauxhall Corsa

2016 · 1398cc Petrol

£2,003/year

81%

-7%

Nissan Qashqai

2017 · 1200cc Petrol

£1,780/year

86%

-2%

Vauxhall Astra

2016 · 999cc Petrol

£1,600/year

85%

-3%

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About the 2018 Smart (MCC) Forfour

The 2018 Smart (MCC) Forfour is a city car. Our records list a 999cc petrol engine, though engines vary between versions. 6,590 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. Among all models from 2018, the average MOT pass rate is 89%, and this model falls short of that benchmark.

With an average of 32,534 miles recorded at its 2024 MOT tests, Smart (MCC) Forfour owners tend to use this car less than the typical driver.

2018 Smart (MCC) Forfour Fuel Costs

The modest 999cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £1,175 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 Smart (MCC) Forfour?

Total estimated annual running cost is £1,780 (£148/month), broken down as £1,175 fuel, £200 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.

Smart (MCC) Forfour Reliability Trend

Newer Smart (MCC) Forfours pass their MOT more often than older ones, by 14 percentage points on average, which is mostly down to age and wear.

Buying a Used 2018 Smart (MCC) Forfour

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. With 6,590 MOT tests in our data, there's strong statistical confidence in these figures.

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.

Coil Pack Failure

Medium risk

Smaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.

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 Smart (MCC) Forfour 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
Smart (MCC) Forfour(2018)	88%	£1,175	£200	Grp 1-8	£1,780
Ford Fiesta(2016)	81%	£1,175	£20	Grp 1-8	£1,600-£180
Vauxhall Corsa(2016)	81%	£1,398	£200	Grp 8-20	£2,003+£223
Nissan Qashqai(2017)	86%	£1,175	£200	Grp 5-15	£1,780same
Vauxhall Astra(2016)	85%	£1,175	£20	Grp 1-8	£1,600-£180

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 Smart (MCC) Forfour

Is the 2018 Smart (MCC) Forfour reliable?

Good reliability. Occasional issues but generally solid. 88% of MOT tests on 2018 Smart (MCC) Forfours ended in a pass, from 6,590 tests (DVSA MOT data for tests in 2024, retests included). That's 6 points above the average of 82% across all models in the same data.

How much does a 2018 Smart (MCC) Forfour cost to run?

Our estimate is £1,780 a year (£148 a month): £1,175 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 Smart (MCC) Forfour?

88% of 6,590 MOT tests on the 2018 Smart (MCC) Forfour ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 408th of 607 models first registered in 2018 (bottom half).

Which year Smart (MCC) Forfour has the best MOT pass rate?

Of the years with at least 100 tests, the 2018 Smart (MCC) Forfour has the highest MOT pass rate at 88% and the 2004 the lowest at 67%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2018 Smart (MCC) Forfour?

The average mileage recorded at MOT tests on the 2018 Smart (MCC) Forfour is 32,534 miles, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.