2003 Fiat Siena vs. 2006 Lexus GS
To start off, 2006 Lexus GS is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 2,999 cc (6 cylinders), 2006 Lexus GS is equipped with a bigger engine. In terms of performance, 2006 Lexus GS (245 HP @ 6200 RPM) has 175 more horse power than 2003 Fiat Siena. (70 HP @ 5750 RPM) In normal driving conditions, 2006 Lexus GS should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Lexus GS weights approximately 555 kg more than 2003 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Lexus GS is four wheel drive (4WD), it will have significant more traction and grip than 2003 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2006 Lexus GS 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, 2006 Lexus GS (313 Nm @ 3600 RPM) has 218 more torque (in Nm) than 2003 Fiat Siena. (95 Nm @ 4000 RPM). This means 2006 Lexus GS will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena. 2006 Lexus GS has automatic transmission and 2003 Fiat Siena has manual transmission. 2003 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Lexus GS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Fiat Siena | 2006 Lexus GS | |
| Make | Fiat | Lexus |
| Model | Siena | GS |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 999 cc | 2999 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 70 HP | 245 HP |
| Engine RPM | 5750 RPM | 6200 RPM |
| Torque | 95 Nm | 313 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1020 kg | 1575 kg |
| Vehicle Length | 4110 mm | 4830 mm |
| Vehicle Width | 1630 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2380 mm | 2860 mm |
