2007 BMW 523 vs. 2003 TVR Speed 12
To start off, 2007 BMW 523 is newer by 4 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 615 more horse power than 2007 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2003 TVR Speed 12 should accelerate faster than 2007 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 523 weights approximately 490 kg more than 2003 TVR Speed 12.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 TVR Speed 12 (881 Nm @ 5750 RPM) has 651 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2003 TVR Speed 12 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2007 BMW 523 | 2003 TVR Speed 12 | |
| Make | BMW | TVR |
| Model | 523 | Speed 12 |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Middle |
| Engine Size | 2497 cc | 7729 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 790 HP |
| Engine RPM | 5800 RPM | 7750 RPM |
| Torque | 230 Nm | 881 Nm |
| Torque RPM | 3500 RPM | 5750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1490 kg | 1000 kg |
| Vehicle Width | 1470 mm | 1970 mm |
| Vehicle Height | 1850 mm | 1110 mm |
| Wheelbase Size | 2890 mm | 2570 mm |
| Fuel Consumption Overall | 8.5 L/100km | 13 L/100km |
| Fuel Tank Capacity | 70 L | 57 L |
