1991 Buick Riviera vs. 1998 Oldsmobile Silhouette
To start off, 1998 Oldsmobile Silhouette is newer by 7 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, 1998 Oldsmobile Silhouette (183 HP @ 5200 RPM) has 13 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 1998 Oldsmobile Silhouette should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1998 Oldsmobile Silhouette weights approximately 225 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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, both vehicles can yield 285 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1991 Buick Riviera | 1998 Oldsmobile Silhouette | |
| Make | Buick | Oldsmobile |
| Model | Riviera | Silhouette |
| Year Released | 1991 | 1998 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 3348 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 183 HP |
| Engine RPM | 4800 RPM | 5200 RPM |
| Torque | 285 Nm | 285 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 96.5 mm | 91 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Vehicle Weight | 1520 kg | 1745 kg |
| Vehicle Length | 5040 mm | 4680 mm |
| Vehicle Width | 1830 mm | 1840 mm |
| Vehicle Height | 1350 mm | 1760 mm |
| Wheelbase Size | 2760 mm | 2850 mm |
