
The SEAT Mii has been scrutinised by Euro NCAP and the car is structurally identical to the Volkswagen up! and has the same interior fittings. SEAT has informed Euro NCAP that the Mii also has the same levels of safety equipment as the up!. Accordingly, Euro NCAP believes that the star rating of the up! can also be applied to the SEAT Mii.
The passenger compartment remained stable in the frontal offset test. Dummy readings indicated good protection of the knees and femurs of the driver and passenger. It was shown that a similar level of protection would be provided to occupants of different sizes and to those sitting in different positions. Chest protection of both dummies was marginal. In the full-width rigid barrier test, protection of the chest was again marginal for both occupants, with other critical body areas well or adequately protected. In the side barrier impact, all critical body areas were well protected and the car scored maximum points in this test. In the more severe side pole test, protection of the chest was adequate and that of other body areas was good. Tests on the front seats and head restraints demonstrated good protection against whiplash injuries in the event of a rear-end collision. A geometric assessment of the rear seats indicated marginal whiplash protection. An autonomous emergency braking (AEB) system is not available.
In the frontal offset test, protection of the neck of the 10 year dummy was rated as marginal, based on dummy readings of tensile forces. Protection of the 6 year dummy was good. In the side barrier test, dummy readings of accelerations in the chest of the 10 year dummy indicated poor protection of that body area. The front passenger airbag can be disabled to allow a rearward-facing child restraint to be used in that seating position. Clear information if provided to the driver and the system was rewarded. All of the restraint types for which the car is designed could be properly installed and accommodated in the car.
The bonnet provided good or adequate protection to the head of a struck pedestrian over most of its surface but there were broad areas of poor performance along the base of the windscreen and on the stiff windscreen pillars. The bumper provided good protection to pedestrians' legs but protection of the pelvis was mixed.
The Mii has a seatbelt reminder system for the front and rear seats. A lane support system helps prevent inadvertent drifting out of lane and also intervenes in some more critical situations. A speed assistance system uses digital mapping to determine the local speed limit and presents this information to the driver.
The SEAT Mii has been scrutinised by Euro NCAP and the car is structurally identical to the Volkswagen up! and has the same interior fittings. SEAT has informed Euro NCAP that the Mii also has the same levels of safety equipment as the up!. Accordingly, Euro NCAP believes that the star rating of the up! can also be applied to the SEAT Mii.
The passenger compartment remained stable in the frontal offset test. Dummy readings indicated good protection of the knees and femurs of the driver and passenger. It was shown that a similar level of protection would be provided to occupants of different sizes and to those sitting in different positions. Chest protection of both dummies was marginal. In the full-width rigid barrier test, protection of the chest was again marginal for both occupants, with other critical body areas well or adequately protected. In the side barrier impact, all critical body areas were well protected and the car scored maximum points in this test. In the more severe side pole test, protection of the chest was adequate and that of other body areas was good. Tests on the front seats and head restraints demonstrated good protection against whiplash injuries in the event of a rear-end collision. A geometric assessment of the rear seats indicated marginal whiplash protection. An autonomous emergency braking (AEB) system is not available.
In the frontal offset test, protection of the neck of the 10 year dummy was rated as marginal, based on dummy readings of tensile forces. Protection of the 6 year dummy was good. In the side barrier test, dummy readings of accelerations in the chest of the 10 year dummy indicated poor protection of that body area. The front passenger airbag can be disabled to allow a rearward-facing child restraint to be used in that seating position. Clear information if provided to the driver and the system was rewarded. All of the restraint types for which the car is designed could be properly installed and accommodated in the car.
The bonnet provided good or adequate protection to the head of a struck pedestrian over most of its surface but there were broad areas of poor performance along the base of the windscreen and on the stiff windscreen pillars. The bumper provided good protection to pedestrians' legs but protection of the pelvis was mixed.
The Mii has a seatbelt reminder system for the front and rear seats. A lane support system helps prevent inadvertent drifting out of lane and also intervenes in some more critical situations. A speed assistance system uses digital mapping to determine the local speed limit and presents this information to the driver.


The SEAT Mii has been scrutinised by Euro NCAP and the car is structurally identical to the Volkswagen up! and has the same interior fittings. SEAT has informed Euro NCAP that the Mii also has the same levels of safety equipment as the up!. Accordingly, Euro NCAP believes that the star rating of the up! can also be applied to the SEAT Mii.
The passenger compartment remained stable in the frontal offset test. Dummy readings indicated good protection of the knees and femurs of the driver and passenger. It was shown that a similar level of protection would be provided to occupants of different sizes and to those sitting in different positions. Chest protection of both dummies was marginal. In the full-width rigid barrier test, protection of the chest was again marginal for both occupants, with other critical body areas well or adequately protected. In the side barrier impact, all critical body areas were well protected and the car scored maximum points in this test. In the more severe side pole test, protection of the chest was adequate and that of other body areas was good. Tests on the front seats and head restraints demonstrated good protection against whiplash injuries in the event of a rear-end collision. A geometric assessment of the rear seats indicated marginal whiplash protection. An autonomous emergency braking (AEB) system is not available.
In the frontal offset test, protection of the neck of the 10 year dummy was rated as marginal, based on dummy readings of tensile forces. Protection of the 6 year dummy was good. In the side barrier test, dummy readings of accelerations in the chest of the 10 year dummy indicated poor protection of that body area. The front passenger airbag can be disabled to allow a rearward-facing child restraint to be used in that seating position. Clear information if provided to the driver and the system was rewarded. All of the restraint types for which the car is designed could be properly installed and accommodated in the car.
The bonnet provided good or adequate protection to the head of a struck pedestrian over most of its surface but there were broad areas of poor performance along the base of the windscreen and on the stiff windscreen pillars. The bumper provided good protection to pedestrians' legs but protection of the pelvis was mixed.
The Mii has a seatbelt reminder system for the front and rear seats. A lane support system helps prevent inadvertent drifting out of lane and also intervenes in some more critical situations. A speed assistance system uses digital mapping to determine the local speed limit and presents this information to the driver.
| Offset Deformable Barrier | Full Width Rigid Barrier |
|---|---|
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| Side Mobile Barrier | Side Pole |
|---|---|
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| Rear Seat | Front Seat |
|---|---|
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Frontal Impact - 15 Pts | Lateral Impact - 7 Pts |
|---|---|
![]() Restraint for 6 year old child: Britax Römer KidFix XP Restraint for 10 year old child: Booster Cushion | ![]() Restraint for 6 year old child: Britax Römer KidFix XP Restraint for 10 year old child: Booster Cushion |
Equipment | Front Passenger | Row 2 Outboard | Row 2 Center | 3rd row outboard |
Isofix | ||||
i-Size | ||||
Integrated CRS |
| i-Size | Isofix |
|---|---|
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| Seatbelt Attached | Legend |
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|
System Name | ||
Type | ||
Operational From | km/h | |
Scenario | Day time | Night time |
Adult crossing the road | ||
Child running from behind parked vehicles | ||
Adult along the roadside |
Scenario | Day time |
Approaching a crossing cyclist | |
Approaching a cyclist along the roadside |
System Name | Maps + More |
Speed Limit Info Function | Map based |
Speed Control Function | NA |
Warning | Driver Seat | Front Passenger(s) | Rear Passenger(s) |
Visual | |||
Audible | |||
Occupant Detection |
System Name | Lane Assist |
System Type | ELK + LKA (including LDW) |
Min Speed (Operational From) | 60km/h |
Performance | |
Emergency Lane Keeping | |
Lane Keep Assist | |
Human Machine Interface | |
System Name | |
Type | |
Operational From | 0 km/h |
Scenario | Autobrake function only | Driver reacts to warning |
Approaching a stationary car | ||
Approaching a slower moving car | ||
Approaching a braking car |
Driver | Passenger | Rear | |
Front Airbag | |||
Belt Pretensioner | |||
Belt Loadlimiter | |||
Knee Airbag |
Driver | Passenger | Rear | |
Front Airbag | |||
Belt Pretensioner | |||
Belt Loadlimiter | |||
Knee Airbag |
Driver | Passenger | Rear | |
Side Head Airbag | |||
Side Chest Airbag | |||
Side Pelvis Airbag | |||
Centre Airbag |
Passenger | Rear | |
Isofix | ||
i-Size | ||
Integrated Child Seat | ||
Airbag Cut-Off Switch | ||
Child Presence Detection |
Driver | Passenger | Rear | |
Seatbelt Reminder |
Active bonnet | |
AEB vulnerable road users | |
AEB pedestrian - reverse | |
Cyclist dooring prevention | |
AEB motorcyclist | |
AEB car-to-car | |
Speed assistance | |
Lane assist system | |
Fatigue detection | |
Distraction detection |
Note: other equipment may be available on the vehicle but was not considered in the test year





Body Type | Variant Description | Drivetrain | Rating Applies LHD | Rating Applies RHD |
|---|---|---|---|---|
5 door Hatchback | Battery electric - Mii electric | 4x2 |
Body Type | Variant Description | Drivetrain | Rating Applies LHD | Rating Applies RHD |
|---|---|---|---|---|
5 door Hatchback | Battery electric - Mii electric | 4x2 |
Date | Event | Outcome |
|---|