The SEAT Mii is a city car that was produced by the Spanish automobile manufacturer SEAT from 2011 to 2019. Part of the Volkswagen Group’s New Small Family (NSF) project, the Mii shares its platform and many components with the Škoda Citigo and Volkswagen up!. Designed as an affordable and economical vehicle, the Mii primarily targeted the European market, offering a practical and efficient solution for urban commuting. The 1.0 12V (75 Hp) Ecomotive variant, detailed here, represented a focus on fuel efficiency and reduced emissions within the Mii lineup.
SEAT Mii 1.0 12V (75 Hp) Ecomotive: Overview
The SEAT Mii, particularly the 1.0 12V Ecomotive model, was conceived as a direct competitor to vehicles like the Fiat 500, Toyota Aygo, and Peugeot 107. Its compact size and nimble handling made it well-suited for navigating congested city streets. The “Ecomotive” designation signified a specific trim level optimized for lower fuel consumption and reduced carbon dioxide emissions, appealing to environmentally conscious buyers. While not officially sold in the United States, understanding the Mii provides insight into the European microcar segment and the Volkswagen Group’s strategy for efficient urban mobility.
Engine & Performance
The SEAT Mii 1.0 12V (75 Hp) Ecomotive 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-weight ratio is 11.5 kg/Hp, and its torque-to-weight ratio is 9.1 kg/Nm. Power delivery is managed through a five-speed manual transmission, driving the front wheels. Performance figures include a 0-100 km/h (0-62 mph) acceleration time of 13.2 seconds, and a 0-60 mph time of 12.5 seconds. The vehicle achieves a maximum speed of 172 km/h (106.88 mph). The engine’s design prioritizes fuel efficiency over outright performance, making it ideal for city driving.
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) – contribute to its maneuverability in urban environments. The Mii’s design is characterized by its rounded edges and relatively simple aesthetic. The Ecomotive trim level often included features aimed at improving fuel economy, such as low rolling resistance tires and optimized aerodynamics. Safety features, typical for vehicles of this class and era, included ABS (Anti-lock Braking System). Interior space is maximized within the car’s small footprint, offering a usable trunk volume of 251 liters (8.86 cu. ft.). The Mii’s focus was on providing a practical and affordable transportation solution, prioritizing functionality and efficiency over luxury or extensive features.
Technical Specifications
| Brand | Seat |
| Model | Mii |
| Generation | Mii |
| Type (Engine) | 1.0 12V (75 Hp) Ecomotive |
| Start of production | October, 2011 |
| End of production | June, 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3-5 |
| Fuel consumption (urban) | 5.1 l/100 km (46.1 US mpg, 55.4 UK mpg, 19.6 km/l) |
| Fuel consumption (extra urban) | 3.7 l/100 km (63.6 US mpg, 76.3 UK mpg, 27 km/l) |
| Fuel consumption (combined) | 4.2 l/100 km (56 US mpg, 67.3 UK mpg, 23.8 km/l) |
| CO2 emissions | 98 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 13.2 sec |
| Acceleration 0 – 62 mph | 13.2 sec |
| Acceleration 0 – 60 mph | 12.5 sec |
| Maximum speed | 172 km/h (106.88 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 11.5 kg/Hp |
| Weight-to-torque ratio | 9.1 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 | 865 kg (1907 lbs.) |
| Max. weight | 1290 kg (2843.96 lbs.) |
| Max load | 425 kg (936.96 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 | 5 gears, manual 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) Ecomotive, while not a performance vehicle, offered a compelling package of affordability, efficiency, and practicality for European city dwellers. Its contribution lies in demonstrating how compact, fuel-efficient vehicles can address the challenges of urban transportation and reduce environmental impact.
