2009 Lexus IS vs. 2003 Pontiac Bonneville
To start off, 2009 Lexus IS is newer by 6 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 3,791 cc (6 cylinders), 2003 Pontiac Bonneville is equipped with a bigger engine. In terms of performance, 2009 Lexus IS (204 HP) has 4 more horse power than 2003 Pontiac Bonneville. (200 HP). In normal driving conditions, 2009 Lexus IS should accelerate faster than 2003 Pontiac Bonneville. With that said, vehicle weight also plays an important factor in acceleration. 2009 Lexus IS weights approximately 135 kg more than 2003 Pontiac Bonneville. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Lexus IS is four wheel drive (4WD), it will have significant more traction and grip than 2003 Pontiac Bonneville. In wet, icy, snow, or gravel driving conditions, 2009 Lexus IS will offer significantly more control. 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 (311 Nm @ 4000 RPM) has 60 more torque (in Nm) than 2009 Lexus IS. (251 Nm @ 4800 RPM). This means 2003 Pontiac Bonneville will have an easier job in driving up hills or pulling heavy equipment than 2009 Lexus IS.
Compare all specifications:
| 2009 Lexus IS | 2003 Pontiac Bonneville | |
| Make | Lexus | Pontiac |
| Model | IS | Bonneville |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 204 HP | 200 HP |
| Torque | 251 Nm | 311 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 96.5 mm |
| Engine Stroke Size | 77 mm | 86.4 mm |
| Engine Compression Ratio | 12.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1765 kg | 1630 kg |
| Vehicle Length | 4590 mm | 5110 mm |
| Vehicle Width | 1810 mm | 1890 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2740 mm | 2880 mm |
| Fuel Tank Capacity | 65 L | 68 L |
