The SEAT Mii is a city car that was produced by the Spanish automobile manufacturer SEAT from 2011 to 2018. Part of the Volkswagen Group’s New Small Family (NSF) project, the Mii shares its platform and many components with the Volkswagen up! and Škoda Citigo. Designed as an affordable and economical vehicle for urban environments, the Mii was primarily sold in Europe. While not officially sold in the United States, understanding its specifications provides insight into the compact car market prevalent in other parts of the world. This article details the SEAT Mii 1.0 12V (75 Hp) Auto, focusing on its technical aspects and place within the European automotive landscape.
SEAT Mii 1.0 12V (75 Hp) Auto: Overview
The Mii aimed to provide a practical and efficient solution for city driving. Its compact size, low running costs, and ease of maneuverability made it a popular choice for first-time car buyers and those seeking a second vehicle for urban commutes. The 1.0 12V (75 Hp) Auto variant, equipped with a five-speed automatic transmission, offered a convenient and accessible driving experience. The Mii competed with other city cars like the Fiat 500, Peugeot 107, and Toyota Aygo, focusing on affordability and fuel efficiency.
Engine & Performance
The SEAT Mii 1.0 12V (75 Hp) Auto is powered by a naturally aspirated, three-cylinder, 1.0-liter (999 cm3 or 60.96 cu. in.) gasoline engine. This engine, designated CHYB, produces 75 horsepower (Hp) at 6200 rpm and 95 Newton-meters (70.07 lb.-ft.) of torque between 3000 and 4300 rpm. The engine’s power-to-liter ratio is a respectable 75.1 Hp/l. Power is delivered to the front wheels via a five-speed automatic transmission.
Performance figures indicate a 0 to 100 km/h (0 to 62 mph) acceleration time of 13.9 seconds, and a 0 to 60 mph time of 13.2 seconds. The vehicle has a maximum speed of 171 km/h (106.25 mph). The Mii’s weight-to-power ratio is 11.4 kg/Hp, and its weight-to-torque ratio is 9 kg/Nm, reflecting its focus on efficiency rather than outright performance. The engine utilizes multi-port manifold fuel injection and a compression ratio of 10.5:1.
Design & Features
The SEAT Mii is a three or five-door hatchback, offering seating for up to five passengers. Its compact dimensions – a length of 3557 mm (140.04 in), a width of 1641/1645 mm (64.61 in), and a height of 1478 mm (58.19 in) – make it easy to navigate and park in congested urban areas. The wheelbase measures 2420 mm (95.28 in).
The Mii’s interior is designed with practicality in mind, offering a functional and straightforward layout. Safety features included ABS (Anti-lock Braking System) as standard. The trunk (boot) space is 251 liters (8.86 cu. ft.), which is adequate for everyday use. The Mii’s suspension consists of an independent McPherson strut setup at the front and a coil spring arrangement at the rear. Braking is handled by ventilated discs at the front and drums at the rear. The steering system is a rack and pinion type with electric power steering for ease of use.
Technical Specifications
| Brand | Seat |
| Model | Mii |
| Generation | Mii |
| Type (Engine) | 1.0 12V (75 Hp) Auto |
| Start of production | October, 2011 |
| End of production | April, 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3-5 |
| Fuel consumption (urban) | 5.5 l/100 km (42.8 US mpg, 51.4 UK mpg, 18.2 km/l) |
| Fuel consumption (extra urban) | 4 l/100 km (58.8 US mpg, 70.6 UK mpg, 25 km/l) |
| Fuel consumption (combined) | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| CO2 emissions | 105 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 13.9 sec |
| Acceleration 0 – 62 mph | 13.9 sec |
| Acceleration 0 – 60 mph | 13.2 sec |
| Maximum speed | 171 km/h (106.25 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 11.4 kg/Hp |
| Weight-to-torque ratio | 9 kg/Nm |
| Power | 75 Hp @ 6200 rpm |
| Torque | 95 Nm @ 3000-4300 rpm (70.07 lb.-ft. @ 3000-4300 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | CHYB |
| Engine displacement | 999 cm3 (60.96 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 74.5 mm (2.93 in.) |
| Piston Stroke | 76.4 mm (3.01 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine oil capacity | 3.4 l (3.59 US qt | 2.99 UK qt) |
| Coolant capacity | 4.1 l (4.33 US qt | 3.61 UK qt) |
| Kerb Weight | 857 kg (1889.36 lbs.) |
| Max. weight | 1290 kg (2843.96 lbs.) |
| Max load | 433 kg (954.6 lbs.) |
| Trunk (boot) space – minimum | 251 l (8.86 cu. ft.) |
| Fuel tank capacity | 35 l (9.25 US gal | 7.7 UK gal) |
| Length | 3557 mm (140.04 in.) |
| Width | 1641/1645 mm (64.61 in.) |
| Height | 1478 mm (58.19 in.) |
| Wheelbase | 2420 mm (95.28 in.) |
| Front track | 1428 mm (56.22 in.) |
| Rear track | 1424 mm (56.06 in.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Wheel rims size | 14 |
The SEAT Mii 1.0 12V (75 Hp) Auto, while not a performance vehicle, offered a compelling package for urban drivers seeking an affordable, efficient, and easy-to-drive city car. Its shared platform with the Volkswagen up! and Škoda Citigo ensured a degree of engineering robustness and reliability, making it a popular choice in its segment.


