1991 Buick Riviera vs. 2005 Dodge Ram
To start off, 2005 Dodge Ram 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 5,621 cc (8 cylinders), 2005 Dodge Ram is equipped with a bigger engine. In terms of performance, 2005 Dodge Ram (346 HP @ 5600 RPM) has 176 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2005 Dodge Ram should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2005 Dodge Ram weights approximately 1059 kg more than 1991 Buick Riviera. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Dodge Ram (509 Nm) has 224 more torque (in Nm) than 1991 Buick Riviera. (285 Nm). This means 2005 Dodge Ram will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 2005 Dodge Ram | |
| Make | Buick | Dodge |
| Model | Riviera | Ram |
| Year Released | 1991 | 2005 |
| Body Type | Coupe | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 5621 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 346 HP |
| Engine RPM | 4800 RPM | 5600 RPM |
| Torque | 285 Nm | 509 Nm |
| Engine Bore Size | 96.5 mm | 100 mm |
| Engine Stroke Size | 86.4 mm | 91 mm |
| Engine Compression Ratio | 8.5:1 | 9.6:1 |
| Number of Seats | 4 seats | 6 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1520 kg | 2579 kg |
| Vehicle Length | 5040 mm | 5790 mm |
| Vehicle Width | 1830 mm | 2030 mm |
| Vehicle Height | 1350 mm | 1900 mm |
| Wheelbase Size | 2760 mm | 3580 mm |
