Technical specifications
| Clear list | Alfa Romeo 159 (2009-2011) | Infiniti Q50 |
| Totals | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| Mark | Alfa Romeo | Infiniti |
| Model | 159 (2009-2011) 1.8 TBi | Q50 2.0t |
| Year | 2009 | 2017 |
| Number of doors/seats | 4/5 | 4/5 |
| Body type | Sedan | Sedan |
| Unladen Weight | 1430 | 1717 |
| Gross Weight Limit | - | - |
| Top Speed, km/h | 235 | 245 |
| Acceleration 0-100 kph | 7.7 | 7.3 |
| Minimum turning radius, m | - | 5.6 |
| Cargo Volume, min/max, L | - | 500 |
| Dimensions specifications, mm | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| Length | 4660 | 4810 |
| Width | 1828 | 1820 |
| Height | 1422 | 1445 |
| Wheelbase | 2700 | 2850 |
| Front/rear Track | 1578/1555 | 1545/1565 |
| Ground clearance | - | 126 |
| Engine specifications | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| Type | Gasoline Direct Injection, turbocharging | Gasoline Direct Injection, turbocharging |
| Displacement, cm3 | 1742 | 1991 |
| Compression ratio | 9.5 | 9.8 |
| Number and arrangement of cylinders | 4 cylinders, in-line | 4 cylinders, in-line |
| The diameter of the cylinder x stroke, mm | 83х80.5 | 83x92 |
| Number of valves | 16 | 16 |
| Power, hp/rpm | 200/5000 | 211/5500 |
| Max torque, Nm/RPM | 320/2000 | 350/1250-3500 |
| Transmission specifications | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| Gearbox | 6-speed manual | 7-speed automatic |
| Drive Type | Front wheel drive | Rear wheel drive |
| Suspension specifications | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| Front | MacPherson strut | Upper and lower A-arm (double wishbone) |
| Rear | multi-link suspensions | multi-link suspensions |
| Tire Size | 205/55 R16, 225/50 R17 | 225/50 R18 |
| Disk | 5x110 ET34 d65.1
| 5x114.3 ET45 d66.1
|
| Brakes specifications | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Discs | Ventilated discs |
| Fuel consumption specifications, L/100 km | Alfa Romeo 159 (2009-2011) 1.8 TBi × | Infiniti Q50 2.0t × |
| City | 11.8 | 9.3 |
| Highway | 6 | 5.7 |
| Combined | 8.1 | 7 |
| Fuel | 95 | 95 |
| Tank, L | 70 | 80 |
| Clear list | Alfa Romeo 159 (2009-2011) | Infiniti Q50 |
