2003 Alfa Romeo 166 vs. 2005 Seat Leon
To start off, 2005 Seat Leon is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 2,959 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2005 Seat Leon (223 HP @ 5900 RPM) has 6 more horse power than 2003 Alfa Romeo 166. (217 HP @ 6300 RPM) In normal driving conditions, 2005 Seat Leon should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 230 kg more than 2005 Seat Leon.
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 Seat Leon (280 Nm @ 2200 RPM) has 15 more torque (in Nm) than 2003 Alfa Romeo 166. (265 Nm @ 5000 RPM). This means 2005 Seat Leon will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166. 2003 Alfa Romeo 166 has automatic transmission and 2005 Seat Leon has manual transmission. 2005 Seat Leon will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 166 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2005 Seat Leon | |
| Make | Alfa Romeo | Seat |
| Model | 166 | Leon |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 217 HP | 223 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 265 Nm | 280 Nm |
| Torque RPM | 5000 RPM | 2200 RPM |
| Engine Bore Size | 93 mm | 81 mm |
| Engine Stroke Size | 72.6 mm | 86.4 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Top Speed | 236 km/hour | 242 km/hour |
| Acceleration 0-100mph | 8.6 seconds | 6.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1550 kg | 1320 kg |
| Vehicle Length | 4730 mm | 4190 mm |
| Vehicle Width | 1810 mm | 1750 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2600 mm | 2470 mm |
| Fuel Consumption Overall | 13 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 69 L | 55 L |
