2009 BMW 635 vs. 1998 Buick Riviera
To start off, 2009 BMW 635 is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1998 Buick Riviera would be higher. At 4,130 cc (6 cylinders), 1998 Buick Riviera is equipped with a bigger engine. In terms of performance, 2009 BMW 635 (282 HP @ 4400 RPM) has 157 more horse power than 1998 Buick Riviera. (125 HP @ 4000 RPM). In normal driving conditions, 2009 BMW 635 should accelerate faster than 1998 Buick Riviera.
Because 2009 BMW 635 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 2009 BMW 635. However, in wet, icy, snow, or gravel driving conditions, 1998 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, 2009 BMW 635 (580 Nm @ 1750 RPM) has 293 more torque (in Nm) than 1998 Buick Riviera. (287 Nm @ 2000 RPM). This means 2009 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 1998 Buick Riviera.
Compare all specifications:
| 2009 BMW 635 | 1998 Buick Riviera | |
| Make | BMW | Buick |
| Model | 635 | Riviera |
| Year Released | 2009 | 1998 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4130 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 282 HP | 125 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Torque | 580 Nm | 287 Nm |
| Torque RPM | 1750 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 100.7 mm |
| Engine Stroke Size | 90 mm | 86.4 mm |
| Engine Compression Ratio | 17.0:1 | 8.0:1 |
| Top Speed | 250 km/hour | 161 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4830 mm | 5230 mm |
| Vehicle Width | 1860 mm | 2040 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 2790 mm | 2780 mm |
| Fuel Tank Capacity | 70 L | 88 L |
