2004 BMW 645 vs. 2000 Buick Riviera
To start off, 2004 BMW 645 is newer by 4 year(s). Which means there will be less support and parts availability for 2000 Buick Riviera. In addition, the cost of maintenance, including insurance, on 2000 Buick Riviera would be higher. At 4,392 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (322 HP @ 7400 RPM) has 120 more horse power than 2000 Buick Riviera. (202 HP @ 5200 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2000 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 15 kg more than 2000 Buick Riviera. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 645 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 2004 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2000 Buick Riviera, 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, 2004 BMW 645 (447 Nm) has 135 more torque (in Nm) than 2000 Buick Riviera. (312 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2000 Buick Riviera.
Compare all specifications:
| 2004 BMW 645 | 2000 Buick Riviera | |
| Make | BMW | Buick |
| Model | 645 | Riviera |
| Year Released | 2004 | 2000 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 3791 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 322 HP | 202 HP |
| Engine RPM | 7400 RPM | 5200 RPM |
| Torque | 447 Nm | 312 Nm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1715 kg | 1700 kg |
| Vehicle Length | 4840 mm | 5270 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1380 mm | 1400 mm |
