2006 Fiat Siena vs. 2003 TVR Speed 12
To start off, 2006 Fiat Siena is newer by 3 year(s). Which means there will be less support and parts availability for 2003 TVR Speed 12. In addition, the cost of maintenance, including insurance, on 2003 TVR Speed 12 would be higher. At 7,729 cc (12 cylinders), 2003 TVR Speed 12 is equipped with a bigger engine. In terms of performance, 2003 TVR Speed 12 (790 HP @ 7750 RPM) has 689 more horse power than 2006 Fiat Siena. (101 HP @ 5500 RPM) In normal driving conditions, 2003 TVR Speed 12 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 783 kg more than 2003 TVR Speed 12.
Because 2003 TVR Speed 12 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 TVR Speed 12. However, in wet, icy, snow, or gravel driving conditions, 2006 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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 TVR Speed 12 (881 Nm @ 5750 RPM) has 741 more torque (in Nm) than 2006 Fiat Siena. (140 Nm @ 4000 RPM). This means 2003 TVR Speed 12 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2006 Fiat Siena | 2003 TVR Speed 12 | |
| Make | Fiat | TVR |
| Model | Siena | Speed 12 |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 1581 cc | 7729 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 790 HP |
| Engine RPM | 5500 RPM | 7750 RPM |
| Torque | 140 Nm | 881 Nm |
| Torque RPM | 4000 RPM | 5750 RPM |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1783 kg | 1000 kg |
| Vehicle Length | 3830 mm | 4310 mm |
| Vehicle Width | 1640 mm | 1970 mm |
| Vehicle Height | 1440 mm | 1110 mm |
| Wheelbase Size | 2380 mm | 2570 mm |
| Fuel Consumption Overall | 8 L/100km | 13 L/100km |
| Fuel Tank Capacity | 54 L | 57 L |
