2003 Alfa Romeo 166 vs. 2005 Pontiac Bonneville
To start off, 2005 Pontiac Bonneville 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 3,786 cc (6 cylinders), 2005 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (217 HP @ 6300 RPM) has 12 more horse power than 2005 Pontiac Bonneville. (205 HP @ 5200 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2005 Pontiac Bonneville. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Bonneville weights approximately 98 kg more than 2003 Alfa Romeo 166.
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 Pontiac Bonneville (312 Nm) has 47 more torque (in Nm) than 2003 Alfa Romeo 166. (265 Nm). This means 2005 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2005 Pontiac Bonneville | |
| Make | Alfa Romeo | Pontiac |
| Model | 166 | Bonneville |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 3786 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 217 HP | 205 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 265 Nm | 312 Nm |
| Engine Bore Size | 93 mm | 97.1 mm |
| Engine Stroke Size | 72.6 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1550 kg | 1648 kg |
| Vehicle Length | 4730 mm | 5150 mm |
| Vehicle Width | 1810 mm | 1890 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2600 mm | 2800 mm |
| Fuel Consumption Highway | 9.3 L/100km | 8.1 L/100km |
| Fuel Consumption City | 19.4 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 13 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 69 L | 68 L |
