Technical specifications
| Clear list | Seat Leon | Alfa Romeo Giulietta |
| Totals | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| Mark | Seat | Alfa Romeo |
| Model | Leon 1.2 TSI (105 PS) | Giulietta 1.6 JTDM |
| Year | 2012 | 2010 |
| Number of doors/seats | 5/5 | 5/5 |
| Body type | Hatch | Hatch |
| Unladen Weight | 1195 (1222) | 1385 |
| Gross Weight Limit | 1710 (1730) | - |
| Top Speed, km/h | 191 | 185 |
| Acceleration 0-100 kph | 10.1 (10) | 11.3 |
| Minimum turning radius, m | 5.1 | - |
| Cargo Volume, min/max, L | 380 | 350/1045 |
| Dimensions specifications, mm | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| Length | 4263 | 4351 |
| Width | 1816 | 1798 |
| Height | 1459 | 1465 |
| Wheelbase | 2636 | 2634 |
| Front/rear Track | 1549/1520 | 1554/1554 |
| Ground clearance | - | - |
| Engine specifications | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| Type | Gasoline Direct Injection, turbocharging | turbo diesel Common Rail |
| Displacement, cm3 | 1197 | 1598 |
| Compression ratio | 10.5 | 16.5 |
| Number and arrangement of cylinders | 4 cylinders, in-line | 4 cylinders, in-line |
| The diameter of the cylinder x stroke, mm | 71х75.6 | 79.5х80.5 |
| Number of valves | 16 | 16 |
| Power, hp/rpm | 105/5000 | 105/4000 |
| Max torque, Nm/RPM | 175/1400-4000 | 320/1750 |
| Transmission specifications | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| Gearbox | 5-speed manual / 7-speed, Automatic DSG | 6-speed manual |
| Drive Type | Front wheel drive | Front wheel drive |
| Suspension specifications | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| Front | MacPherson strut | MacPherson strut |
| Rear | Dependent suspensions | multi-link suspensions |
| Tire Size | 195/65 R15, 205/55 R16, 225/45 R17 | 205/55 R16 |
| Disk | 5x112 ET46 d57.1
| 5x110 ET41 d65.1
|
| Brakes specifications | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| Front | Ventilated discs | Ventilated discs |
| Rear | Discs | Discs |
| Fuel consumption specifications, L/100 km | Seat Leon 1.2 TSI (105 PS) × | Alfa Romeo Giulietta 1.6 JTDM × |
| City | 6.5 (6) | 5.5 |
| Highway | 4.4 (4.1) | 3.7 |
| Combined | 5.2 (4.9) | 4.4 |
| Fuel | 95 | Diesel |
| Tank, L | 50 | 60 |
| Clear list | Seat Leon | Alfa Romeo Giulietta |
