2006 BMW 645 vs. 1998 BMW 845
To start off, 2006 BMW 645 is newer by 8 year(s). Which means there will be less support and parts availability for 1998 BMW 845. In addition, the cost of maintenance, including insurance, on 1998 BMW 845 would be higher. Both 2006 BMW 645 and 1998 BMW 845 are equipped with a 4,398 cc engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 46 more horse power than 1998 BMW 845. (282 HP @ 5700 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1998 BMW 845. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 60 kg more than 1998 BMW 845. 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 30 more torque (in Nm) than 1998 BMW 845. (420 Nm @ 3900 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 845. 2006 BMW 645 has automatic transmission and 1998 BMW 845 has manual transmission. 1998 BMW 845 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 645 | 1998 BMW 845 | |
| Make | BMW | BMW |
| Model | 645 | 845 |
| Year Released | 2006 | 1998 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 282 HP |
| Engine RPM | 6100 RPM | 5700 RPM |
| Torque | 450 Nm | 420 Nm |
| Torque RPM | 3600 RPM | 3900 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1810 kg | 1750 kg |
| Vehicle Length | 4830 mm | 4790 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1350 mm |
| Wheelbase Size | 2790 mm | 2690 mm |
