1999 BMW 845 vs. 2006 BMW 523
To start off, 2006 BMW 523 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 BMW 845. In addition, the cost of maintenance, including insurance, on 1999 BMW 845 would be higher. At 4,398 cc (8 cylinders), 1999 BMW 845 is equipped with a bigger engine. In terms of performance, 1999 BMW 845 (282 HP @ 5700 RPM) has 107 more horse power than 2006 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 1999 BMW 845 should accelerate faster than 2006 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW 845 weights approximately 118 kg more than 2006 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1999 BMW 845 (420 Nm @ 3900 RPM) has 190 more torque (in Nm) than 2006 BMW 523. (230 Nm @ 3500 RPM). This means 1999 BMW 845 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 523.
Compare all specifications:
| 1999 BMW 845 | 2006 BMW 523 | |
| Make | BMW | BMW |
| Model | 845 | 523 |
| Year Released | 1999 | 2006 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 175 HP |
| Engine RPM | 5700 RPM | 5800 RPM |
| Torque | 420 Nm | 230 Nm |
| Torque RPM | 3900 RPM | 3500 RPM |
| Engine Bore Size | 92 mm | 78.8 mm |
| Engine Stroke Size | 82.7 mm | 82 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1632 kg |
| Vehicle Length | 4790 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2690 mm | 2890 mm |
