Technical specifications
| Clear list | Opel Signum (2005-2008) | BMW 1er (2015-2019) |
| Totals | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| Mark | Opel | BMW |
| Model | Signum (2005-2008) 1.8 | 1er (2015-2019) 1.6 (118i) |
| Year | 2005-2008 | 2015-2019 |
| Number of doors/seats | 5/5 | 5/5 |
| Body type | Hatch | Hatch |
| Unladen Weight | 1405 | 1375 (1395) |
| Gross Weight Limit | 1995 | - |
| Top Speed, km/h | 207 | 210 (210) |
| Acceleration 0-100 kph | 11.3 | 8.5 (8.7) |
| Minimum turning radius, m | 5.95 | 5.5 |
| Cargo Volume, min/max, L | 365/1410 | 360/1200 |
| Dimensions specifications, mm | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| Length | 4650 | 4329 |
| Width | 1800 | 1765 |
| Height | 1460 | 1440 |
| Wheelbase | 2830 | 2690 |
| Front/rear Track | 1535/1525 | 1535/1569 |
| Ground clearance | - | 140 |
| Engine specifications | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| Type | petrol Injection | Gasoline Direct Injection, turbocharging |
| Displacement, cm3 | 1796 | 1598 |
| Compression ratio | 10.5 | 10.5 |
| Number and arrangement of cylinders | 4 cylinders, in-line | 4 cylinders, in-line |
| The diameter of the cylinder x stroke, mm | 80.5х88.2 | 77х85.8 |
| Number of valves | 16 | 16 |
| Power, hp/rpm | 140/6300 | 136/4400-6450 |
| Max torque, Nm/RPM | 175/3800 | 220/1350-4300 |
| Transmission specifications | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| Gearbox | 5-speed manual | 6-speed manual / 8-speed automatic |
| Drive Type | Front wheel drive | Rear wheel drive |
| Suspension specifications | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| Front | MacPherson strut | Upper and lower A-arm (double wishbone) |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 215/55/16 | 195/55 R16 |
| Disk | 5x110 ET41 d65,1
| 5x120 ET44 d72.6
|
| Brakes specifications | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Discs | Discs |
| Fuel consumption specifications, L/100 km | Opel Signum (2005-2008) 1.8 × | BMW 1er (2015-2019) 1.6 (118i) × |
| City | 10.4 | 7 (7.2) |
| Highway | 6.1 | 4.5 (4.6) |
| Combined | 7.7 | 5.4 (5.6) |
| Fuel | 95 | 95 |
| Tank, L | 60 | 52 |
| Clear list | Opel Signum (2005-2008) | BMW 1er (2015-2019) |
