2005 Fiat Siena vs. 2003 Pontiac Bonneville
To start off, 2005 Fiat Siena is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Pontiac Bonneville. In addition, the cost of maintenance, including insurance, on 2003 Pontiac Bonneville would be higher. At 4,565 cc (8 cylinders), 2003 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2003 Pontiac Bonneville (275 HP @ 5600 RPM) has 151 more horse power than 2005 Fiat Siena. (124 HP @ 4000 RPM) In normal driving conditions, 2003 Pontiac Bonneville should accelerate faster than 2005 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 Pontiac Bonneville weights approximately 624 kg more than 2005 Fiat Siena. 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, 2003 Pontiac Bonneville (298 Nm @ 4000 RPM) has 158 more torque (in Nm) than 2005 Fiat Siena. (140 Nm @ 4000 RPM). This means 2003 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 2005 Fiat Siena. 2003 Pontiac Bonneville has automatic transmission and 2005 Fiat Siena has manual transmission. 2005 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Pontiac Bonneville will be easier to drive especially in heavy traffic.
Compare all specifications:
2005 Fiat Siena | 2003 Pontiac Bonneville | |
Make | Fiat | Pontiac |
Model | Siena | Bonneville |
Year Released | 2005 | 2003 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 1585 cc | 4565 cc |
Engine Cylinders | 4 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 124 HP | 275 HP |
Engine RPM | 4000 RPM | 5600 RPM |
Torque | 140 Nm | 298 Nm |
Torque RPM | 4000 RPM | 4000 RPM |
Engine Bore Size | 86.4 mm | 93.1 mm |
Engine Stroke Size | 67.4 mm | 84 mm |
Drive Type | Front | Front |
Transmission Type | Manual | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1095 kg | 1719 kg |
Wheelbase Size | 2450 mm | 2790 mm |
Fuel Tank Capacity | 47 L | 70 L |