2005 Alfa Romeo 156 vs. 2006 Seat Leon
To start off, 2006 Seat Leon is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 3,179 cc (6 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (247 HP @ 6200 RPM) has 65 more horse power than 2006 Seat Leon. (182 HP @ 6000 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2006 Seat Leon. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 76 kg more than 2006 Seat Leon. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Alfa Romeo 156 (305 Nm @ 4800 RPM) has 35 more torque (in Nm) than 2006 Seat Leon. (270 Nm @ 1800 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2006 Seat Leon.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2006 Seat Leon | |
| Make | Alfa Romeo | Seat |
| Model | 156 | Leon |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 182 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 305 Nm | 270 Nm |
| Torque RPM | 4800 RPM | 1800 RPM |
| Engine Compression Ratio | 10.5:1 | 10.3:1 |
| Top Speed | 250 km/hour | 216 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 7.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1410 kg | 1334 kg |
| Vehicle Length | 4440 mm | 4320 mm |
| Vehicle Width | 1770 mm | 1770 mm |
| Vehicle Height | 1410 mm | 1460 mm |
| Wheelbase Size | 2600 mm | 2580 mm |
| Fuel Consumption Overall | 12.3 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
