MCLAREN 720S V8 S-A (2021)
Running costs, reliability data, and common problems from 300 real MOT tests.
Annual Cost
£2,042
£170/month
MOT Pass Rate
98%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
3994cc Petrol
Great Choice
98% pass rate, £2042/year to run. 16 points above average.
Check a specific MCLAREN 720S V8 S-A
Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.
Annual Running Costs
~30 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
Get an insurance quote for this MCLAREN 720S V8 S-A
Compare quotes and find the best deal
Reliability Verdict
Excellent reliability. Very few MOT failures. That's 16 points above the national average of 82%.
At 5 years old, 98% of MCLAREN 720S V8 S-As from 2021 passed their MOT first time in 2026. That's based on 300 tests across the UK. The average mileage at this age is 8,097 miles.
Got a MCLAREN 720S V8 S-A you're looking at?
Enter the reg plate to check its specific MOT history, mileage, and health score.
How Does It Compare?
Mileage Analysis
8,097
Average miles
37,000
Expected for age
The average 2021 MCLAREN 720S V8 S-A has 8,097 miles on the clock, which is significantly below the expected 37,000 miles for a 5-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
Looking at a specific MCLAREN 720S V8 S-A?
Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.
Best Year to Buy?
The most reliable year is the 2017 model with a 99% MOT pass rate, while the 2020 model has the lowest at 95%. The 2021 sits between the two at 98%.
MCLAREN 720S V8 S-A by Year
Similar Cars to Consider
Check a Specific Mclaren 720s v8 s-a
Enter a reg plate to get the full MOT history, health score, and mileage verification.
Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.
About the 2021 MCLAREN 720S V8 S-A
The 2021 MCLAREN 720S V8 S-A is a luxury with a 3994cc petrol engine. 300 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 6% of all 2021 cars for reliability.
With an average of 8,097 miles at 5 years old, MCLAREN 720S V8 S-A 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.
2021 MCLAREN 720S V8 S-A Fuel Costs
The 3994cc 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 £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 MCLAREN 720S V8 S-A?
Total estimated annual running cost is £2,042 (£170/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 98% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MCLAREN 720S V8 S-A Reliability Trend
The MCLAREN 720S V8 S-A has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Buying a Used 2021 MCLAREN 720S V8 S-A
At 5 years old, the MCLAREN 720S V8 S-A 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 2017 model has the highest pass rate at 99%.
Common Issues to Watch For
Based on the 2021 MCLAREN 720S V8 S-A's fuel type, age, and engine size, these are the most likely problem areas to check.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
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 2021 MCLAREN 720S V8 S-A stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| MCLAREN 720S V8 S-A(2021) | 98% | £1592 | £195 | Grp 35-50 | £2042 |
| MERCEDES C(2019) | 91% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| PORSCHE CAYENNE(2019) | 95% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| PORSCHE 911(2019) | 97% | £1592 | £190 | Grp 35-50 | £2037-£5 |
| AUDI A6(2020) | 94% | £1592 | £190 | Grp 35-50 | £2037-£5 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Mclaren Models
Explore other Mclaren cars or similar models in the same category.
Related Guides
In-depth articles relevant to the Mclaren 720s v8 s-a.
Cheapest Cars to Run in 2026: Real Data from 19.8 Million MOT Tests
9 min read
Reliability20 Most Reliable Used Cars UK 2026: Real MOT Pass Rate Rankings
10 min read
ReliabilityMost Reliable Used Cars UK 2026 (Data From 50M Real MOT Tests)
11 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Problems: 7 Issues Owners Report (2026)
13 min read
Check a specific MCLAREN 720S V8 S-A
Enter the reg to see its MOT history, mileage check, and predicted costs.
Premium History Check
Buying a MCLAREN 720S V8 S-A? Our premium check covers:
- Stolen check (PNC)
- Outstanding finance
- Write-off history (Cat A/B/N/S)
- Previous owners count
Competitors charge £10-£20 for the same data