2005 BMW 325 vs. 1991 Buick Riviera
To start off, 2005 BMW 325 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 2005 BMW 325 (215 HP @ 6500 RPM) has 45 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM). In normal driving conditions, 2005 BMW 325 should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Riviera weights approximately 26 kg more than 2005 BMW 325.
Let's talk about torque, 1991 Buick Riviera (285 Nm @ 3200 RPM) has 35 more torque (in Nm) than 2005 BMW 325. (250 Nm @ 2750 RPM). This means 1991 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 325.
Compare all specifications:
| 2005 BMW 325 | 1991 Buick Riviera | |
| Make | BMW | Buick |
| Model | 325 | Riviera |
| Year Released | 2005 | 1991 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 3800 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 215 HP | 170 HP |
| Engine RPM | 6500 RPM | 4800 RPM |
| Torque | 250 Nm | 285 Nm |
| Torque RPM | 2750 RPM | 3200 RPM |
| Engine Bore Size | 82 mm | 96.5 mm |
| Engine Stroke Size | 78.8 mm | 86.4 mm |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1494 kg | 1520 kg |
| Vehicle Length | 4480 mm | 5040 mm |
| Vehicle Width | 1820 mm | 1830 mm |
| Vehicle Height | 1440 mm | 1350 mm |
| Wheelbase Size | 2730 mm | 2760 mm |
