Hyundai i800 (2020)

Estimated running costs and MOT pass rates from 124 MOT tests in 2024.

Annual Cost

£2,431

£203/month

MOT Pass Rate

78%

Average

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 25-38

2497cc Diesel

Check Carefully

78% pass rate, £2,431/year to run. Close to the average across all models.

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Diesel2497cc6 years old124 tests39k miles avg

Annual Running Costs

Fuel (Diesel, 2497cc)

~40 mpg

£1,676

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

£500

Total per year£2,431

Per month£203/mo

Per week£47/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p 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

78% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the average of 82% across all models in our data. It falls below the Hyundai brand average of 83%.

78% of MOT tests on Hyundai i800s from 2020 ended in a pass in 2024, when they were about 4 years old. That's based on 124 tests across the UK, retests included. The average mileage recorded at those tests was 39,129 miles.

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How Does It Compare?

Rank among 2020 models2524th of 2,554(bottom 2%)

Rank among Hyundai models263rd of 414(bottom half)

vs average of all models-4%(82% avg)

vs 2020 models average-14%(92% avg)

vs Hyundai average-5%(83% avg)

Mileage Analysis

39,129

Average miles

29,600

Expected for age

The average 2020 Hyundai i800 had 39,129 miles on the clock at its 2024 MOT, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

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Best Year to Buy?

Of the years with at least 100 tests, the 2019 model has the highest MOT pass rate at 86%, while the 2008 model has the lowest at 67%. The 2020 scores 78%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Hyundai i800 by Year

Year	Pass Rate	Tests	Avg Mileage
2020	78%	124	39,129 mi
2019	86%	3,210	48,745 mi
2018	82%	2,077	72,297 mi
2017	81%	2,440	85,059 mi
2016	79%	1,923	90,577 mi
2015	77%	253	104,422 mi
2014	74%	288	119,694 mi
2013	71%	417	99,935 mi
2012	73%	1,920	116,207 mi
2011	75%	938	108,829 mi
2010	72%	816	113,107 mi
2009	71%	325	123,313 mi
2008	67%	277	124,551 mi

Similar Cars to Consider

Ford Kuga

2019 · 1997cc Diesel

£1,852/year

91%

+13%

Mercedes E

2019 · 2925cc Diesel

£2,131/year

90%

+12%

Mercedes GLC

2018 · 2987cc Diesel

£2,131/year

91%

+13%

Land Rover Discovery Sport

2018 · 1999cc Diesel

£2,002/year

89%

+11%

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About the 2020 Hyundai i800

The 2020 Hyundai i800 is a large car. Our records list a 2497cc diesel engine, though engines vary between versions. 124 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 2% of 2020 models for MOT pass rate.

With an average of 39,129 miles recorded at its 2024 MOT tests, Hyundai i800 owners cover more miles than the average driver.

2020 Hyundai i800 Fuel Costs

The 2497cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,676 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2020 Hyundai i800?

Total estimated annual running cost is £2,431 (£203/month), broken down as £1,676 fuel, £200 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 78% pass rate. Keeping on top of servicing will help avoid surprises.

Hyundai i800 Reliability Trend

Newer Hyundai i800s pass their MOT more often than older ones, by 8 percentage points on average, which is mostly down to age and wear.

Buying a Used 2020 Hyundai i800

At 6 years old, the Hyundai i800 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2019 model has the highest pass rate at 86%.

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.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Medium risk

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Medium risk

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

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 2020 Hyundai i800 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
Hyundai i800(2020)	78%	£1,676	£200	Grp 25-38	£2,431
Ford Kuga(2019)	91%	£1,397	£200	Grp 18-32	£1,852-£579
Mercedes E(2019)	90%	£1,676	£200	Grp 30-42	£2,131-£300
Mercedes GLC(2018)	91%	£1,676	£200	Grp 30-42	£2,131-£300
Land Rover Discovery Sport(2018)	89%	£1,397	£200	Grp 18-32	£2,002-£429

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 2020 Hyundai i800

Is the 2020 Hyundai i800 reliable?

Average reliability. Expect some repairs as it ages. 78% of MOT tests on 2020 Hyundai i800s ended in a pass, from 124 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data.

How much does a 2020 Hyundai i800 cost to run?

Our estimate is £2,431 a year (£203 a month): £1,676 fuel, £200 road tax, £55 MOT and £500 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2020 Hyundai i800?

78% of 124 MOT tests on the 2020 Hyundai i800 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2524th of 2,554 models first registered in 2020 (bottom 2%).

Which year Hyundai i800 has the best MOT pass rate?

Of the years with at least 100 tests, the 2019 Hyundai i800 has the highest MOT pass rate at 86% and the 2008 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 2020 Hyundai i800?

The average mileage recorded at MOT tests on the 2020 Hyundai i800 is 39,129 miles, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.