Britain's Worst Luxury Cars: What 1.6M MOT Tests Reveal

Living in west London, you see a lot of luxury cars. Range Rovers on every second driveway, Ghiblis outside prep schools, a reliable parade of Jaguars at the school gate. I've always wondered how much of the premium is going into engineering, and how much is going into the badge. So we pulled the data.

We analysed over one and a half million MOT tests across ten luxury car brands registered between 2011 and 2018. The pattern that came out genuinely surprised me. The worst luxury cars in Britain aren't the Ferraris and Bentleys. They're the aspirational saloons. The ones people buy to look like they've made it.

How We Did This

Every number in this article comes from the Driver and Vehicle Standards Agency's complete MOT test archive, published under the Open Government Licence. We're looking at what actually happens to real cars on real roads, inspected by independent testers, not manufacturer claims or owner surveys.

We filtered to ten luxury brands: Jaguar, Land Rover, Porsche, Bentley, Aston Martin, Maserati, Ferrari, Lamborghini, Rolls Royce, and McLaren. We restricted to model years 2011-2018 to make the comparison fair. We required a minimum sample size of 300 vehicles per variant to avoid statistical noise. That left us with 1.6 million MOT tests to analyse.

The ranking metric is our reliability score out of 1,000. This is the important part, so it's worth explaining.

We score every vehicle out of 1,000 based on how its MOT pass rate compares to the benchmark for cars of the same age, fuel type, and mileage range. A 10-year-old car isn't penalised for being older than a 4-year-old car. A 500 is average. Below 500 means worse than peers of the same vintage. Above 700 is strong. This matters because a raw pass rate comparison would unfairly favour the newer cars, and the whole point of this analysis is fairness.

Here's what that looks like in practice, with the cars featured in this article plotted against the supercar tier:

The three cars featured in this article (red dots) sit in the below-average band. The supercar and grand tourer tier (green dots) sits in the strong-to-exceptional band. Source: PlateInsight analysis of DVSA MOT data, April 2026. Full methodology.

Read more about the scoring method in our methodology guide, which covers the full calculation, sample size rules, and limitations.

The 90% Pass Rate Club

Before we get to the worst, look at the top of the luxury ladder. These are the cars most people assume would be nightmares to own.

A 14-year-old Ferrari 599 passes MOT at 90.4%. The single most common defect affects just 7.3% of tests. That's better than a three-year-old Ford Fiesta. The Bentley Continental and Aston V8 Vantage are in the same territory.

The reason is straightforward. If you own a £200,000 car, you maintain it. Tyres are replaced before they hit the legal limit, not at it. Brake discs get swapped on schedule. The car goes to a specialist, not Halfords. The data is a direct reflection of that culture.

And then you get to the aspirational tier. Cars built to look luxurious at a fraction of the price. And a completely different ownership profile.

The 3 Worst Mainstream Luxury Cars

Ranked by reliability score. Each score includes an age adjustment, so we're not penalising older cars for being older. Sample sizes in the thousands for all three.

#3: Jaguar XF (2015 diesel)

The XF is Jaguar's mid-sized executive saloon. When it's new, it costs £40,000-£55,000 and buyers are choosing it over a BMW 5-Series or Audi A6. It looks the part and drives beautifully. But the ownership data tells a grim story.

Nearly a third of all MOTs flag a tyre worn close to the legal limit. Another 14% flag perished or damaged tyres. Add brake pads and discs, and you're looking at a car where two-thirds of MOTs catch something wrong. Even with our reliability score adjusting for age, the XF scores below average against its class.

Replacement tyres on an XF are £180-£250 each at premium brands. Brake discs and pads are £400-£600 front axle at an independent. Main dealer? Double. The running cost profile is closer to a Porsche Cayenne than the BMW 5-Series the XF competes with on price.

The older 2011-2014 XFs actually score better by this metric. That's an uncomfortable finding for Jaguar. The refresh from 2015 onwards seems to have made things worse, not better.

#2: Maserati Ghibli (2017 diesel)

The Ghibli is Maserati's attempt to put a proper Italian luxury saloon in front of BMW 5-Series and Mercedes E-Class buyers. A £70,000 car when new. A 2017 diesel will cost you £25,000-£30,000 used today. The badge is fantastic. The data, less so.

The standout number is that 43.6% figure on the front tyres. Tyres don't wear on the inner shoulder from driving gently. That pattern is almost always alignment or suspension geometry, and when nearly half the cars show the same wear pattern, it's a design-level issue, not a fleet of abused examples.

This one also comes with a running cost sting. Ghibli front tyres are £300-£400 each for premium rubber in the correct sizes. If your car is eating the inner shoulder at twice the normal rate, you're replacing all four a lot more often than you'd expect. On a £25,000 used car, that maths gets ugly fast.

Sample size is lower than the Jaguars at 370 cars, but the wear pattern is so consistent it's hard to dismiss. The 2014-2016 diesels show a similar picture.

#1: Jaguar XE (2018 diesel). The Worst Luxury Car in Britain

The XE was supposed to be Jaguar's Audi A4 beater. A £35,000 entry-level luxury saloon that made the brand accessible to aspirational buyers. The 2018 diesel is the one that scores worst, and the numbers deserve a closer look.

A third of all MOTs flag worn tyres. A quarter flag worn brake discs. Add brake pads and tyre damage, and roughly 9 out of 10 MOTs catch at least one issue on this car. For a car that was only four or five years old at the time of much of this testing, that's not a great look. The 492/1000 reliability score isn't a fluke. It's where you land when defect rates are consistently that high.

The 255/35/19 tyres on this car are expensive. Around £200 each at premium brands, more if you want Michelins. Run-flats, which this car uses, cost more. Replacing all four every 15,000-20,000 miles is normal for XE owners, and the data suggests many go longer than they should, running tyres right down to the limit.

This is the pattern that separates aspirational luxury from the supercar tier. People who stretched to buy a Jaguar XE as their dream car are often working within tight maintenance budgets. Compare that to the Ferrari 599 owner who never once lets a tyre get close to worn.

The cheapest Jaguar is the worst Jaguar. That's the story here.

Honourable Mentions

These didn't make the main list but deserve a note.

Range Rover (2011 diesel): Scores 676/1000. Better than you'd expect given the brand's reputation, but still below average. The signature issue is rear suspension bushes, flagged in 34% of tests. Budget £600-800 for a full rear refresh at an independent specialist.

Land Rover Defender (2011 diesel): The lowest pass rate of any luxury car at 77.8%, with a 489/1000 reliability score. We've kept it out of the main list because the Defender is often used as a working vehicle. Farms, estates, trade. That punishing use explains a lot of the corrosion and wear. Still worth checking any Defender carefully. The brake pipe corrosion rate on these cars is 20%, which is not ideal whatever the use case.

Jaguar XE (2015, 2016, 2017 diesels): All score between 534 and 552. The XE has structural reliability issues regardless of model year, not just the 2018. If you're considering one, our vehicle check guide is essential reading.

Range Rover Velar (2017-2018): Lower scores around 550/1000, but this is a relatively new car so the dataset is still growing. One to watch.

Why Aspirational Luxury Fails

This data says more about owners than it does about cars.

A £35,000 Jaguar XE and a £200,000 Ferrari 599 are both "luxury" on paper. In practice, the people buying them live in different worlds. One has a maintenance budget. The other has a stretched monthly payment.

Ferrari owners tend to have multiple cars, specialist workshops on speed-dial, and a habit of replacing parts before they cause problems. Honest John's ownership data shows the same pattern across the whole supercar market. That culture of obsessive maintenance is a big part of why these cars age so well.

The XE buyer often stretched to afford the car in the first place. A £400 set of tyres becomes £400 they'd rather not spend. A Jaguar specialist quotes £800 for brake discs, so the car goes to Halfords Autocentre. Or nowhere at all. The badge says lifestyle. The service receipts say otherwise.

That's the real story here. The cars in our worst list aren't badly built. They're cars that punish neglect, sold to a market that can't always afford not to neglect them.

If you're buying used, the previous owner's habits matter more than the year or model. Full main dealer history on an XE is rare. If you find one, it's probably fine. If it's been bouncing between budget garages with skipped services, you're buying someone else's deferred maintenance bill.

What to Check Before Buying

If you're still tempted by one of these cars, here's the order of operations.

1. Run a PlateInsight check first. Takes thirty seconds. You'll get the full MOT history, an AI health score comparing this specific car against every other of the same age and mileage, a critical-issues forecast for that model, and a clear buy-or-avoid verdict. Signs you should walk away: repeat tyre advisories year after year, brake defects flagged across multiple MOTs, any dangerous defect in the last 3 years. Five free checks on the app.
2. Service history in detail. Full main dealer history matters more on these cars than most. Independent specialist history is acceptable. A file of Mickey Mouse garage stamps is not. Match the service dates against the mileage recorded at each MOT, which PlateInsight shows you.
3. Tyre check at viewing. Look at the inner and outer shoulders of the front tyres. Uneven wear points to alignment issues. On a Ghibli or XF this is the biggest red flag. If the car has already shown this pattern on previous MOTs, assume the next owner (you) pays for new tyres within months.
4. Brake disc inspection. Get a torch and look at the discs through the wheels. Lipping on the outer edge, rust pitting, or scored surfaces all mean new discs within 12 months. On an XE you're looking at £400-600 at an independent.
5. Stolen, finance and write-off check. Non-negotiable at these price points. PlateInsight's full background check costs £5.99 on the 25-credit pack, which is roughly a third of what HPI charges. Our vehicle check comparison covers every UK provider if you want to see the options.

The biggest advantage of checking the car before you view it: you arrive knowing which defects are statistically likely for that exact model year. On a Jaguar XE, the tyre issue is coming whether the seller mentions it or not. On a Ghibli, the alignment wear is. Walking in with that context changes how you negotiate.

Frequently Asked Questions

Full Methodology

Data source: DVSA MOT test archive, published under the Open Government Licence v3.0. Analysis conducted by PlateInsight in April 2026.

Sample: 1.6 million MOT tests across 10 luxury brands (Jaguar, Land Rover, Porsche, Bentley, Aston Martin, Maserati, Ferrari, Lamborghini, Rolls Royce, McLaren). Model years 2011-2018. Minimum 300 vehicles per variant to ensure statistical relevance.

Ranking metric: PlateInsight reliability score (0-1000), age-adjusted against vehicles of same age, fuel type, and mileage band. Pass rate and defect data shown alongside for transparency.

Limitations: MOT data captures defects found at annual inspection, not issues resolved proactively between tests. Scores reflect fleet averages; individual cars vary with maintenance history. Smaller sample sizes (under 1,000 cars) carry more uncertainty than larger ones. We welcome press enquiries about the methodology. Contact details below.

Published by PlateInsight, an independent vehicle intelligence platform analysing 261 million MOT records. All data from DVSA under Open Government Licence v3.0. Press enquiries: [email protected]. Last updated 20 April 2026.