MOT performance
Alfa Romeo Giulietta vs Fiat Tipo: MOT pass rates compared
In 2023–2024, 68.4% of 52,254 Alfa Romeo Giulietta MOT tests and 73.6% of 25,118 Fiat Tipo tests passed first time — 5.1 points in favour of the Fiat Tipo. Once age, mileage and fuel are allowed for, the Alfa Romeo Giulietta fails less often than the Fiat Tipo: 1.01× against 1.42× the national rate for comparable cars.
52,254 Alfa Romeo Giulietta and 25,118 Fiat Tipo MOT tests, 2023–2024
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| Figure | Value | Basis |
|---|---|---|
| Alfa Romeo Giulietta: first-time pass rate | 68.4% | ±0.4 pts (95%), n = 52,254 |
| Fiat Tipo: first-time pass rate | 73.6% | ±0.5 pts (95%), n = 25,118 |
| Alfa Romeo Giulietta: failures vs similar cars | +1% | same age, mileage and fuel = 1.00 |
| Fiat Tipo: failures vs similar cars | +42% | same age, mileage and fuel = 1.00 |
| Alfa Romeo Giulietta: dangerous defect | 10.2% | n = 52,254 |
| Fiat Tipo: dangerous defect | 8.3% | n = 25,118 |
| Average age at test | 9.3 vs 5.2 years | Alfa Romeo Giulietta vs Fiat Tipo |
Why the raw pass rates can mislead
The Alfa Romeo Giulietta was tested at an older average age (9.3 years against 5.2), and older cars fail more often whatever they are. That is why the table above also shows failures against cars of the same age, mileage and fuel: it compares the models, not their fleets. Here the adjustment reverses the raw result: the Alfa Romeo Giulietta has the lower pass rate but fails less often than comparable cars.
Failure areas side by side
Share of MOT tests that failed on each area, and in brackets how that compares with cars of the same age, mileage and fuel (1.00 = national average). The clearest difference is steering, where the Fiat Tipo fails 2.8 times as often on an adjusted basis.
| Area | Alfa Romeo Giulietta | Fiat Tipo |
|---|---|---|
| Brakes | 5.9% (-16%) | 5.3% (+42%) |
| Steering | 0.3% (-85%) | 0.3% (-59%) |
| Suspension | 11.0% (+7%) | 8.9% (+187%) |
| Tyres | 9.0% (+27%) | 7.0% (+20%) |
| Road wheels | 0.4% (-11%) | 0.3% (+10%) |
| Lights, reflectors and electrical | 11.8% (-3%) | 5.9% (+20%) |
| Body, chassis and structure | 2.1% (-37%) | 0.7% (-23%) |
| Driver's view of the road | 4.8% (+1%) | 5.6% (+61%) |
| Noise, emissions and leaks | 3.7% (+19%) | 2.3% (+65%) |
| Seat belts and airbags | 0.7% (-20%) | 0.4% (-7%) |
| Registration plates and VIN | 0.3% (Same) | 0.2% (-26%) |
Pass rate at the same age
Comparing cars of the same age removes most of the fleet-age effect from the raw rates.
| Age at test | Alfa Romeo Giulietta | Fiat Tipo |
|---|---|---|
| 3-4 years | 85.4% (n = 2,099) | 80.0% (n = 5,535) |
| 5-6 years | 81.3% (n = 5,315) | 71.5% (n = 13,553) |
| 7-8 years | 74.5% (n = 11,153) | 68.5% (n = 4,306) |
Most common failure item
- Alfa Romeo Giulietta · coil spring: fractured or broken (3.79% of tests)
- Fiat Tipo · wipers: does not clear the windscreen effectively (3.54% of tests)
MOT results reflect how cars are maintained as well as how they are built, so a gap between two models is a difference in test performance, not proof that one is more reliable. For one car, its own MOT history says more than any average.
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About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.