1991 Buick Riviera vs. 1973 Rover P5B
To start off, 1991 Buick Riviera is newer by 18 year(s). Which means there will be less support and parts availability for 1973 Rover P5B. In addition, the cost of maintenance, including insurance, on 1973 Rover P5B would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 1991 Buick Riviera (170 HP @ 4800 RPM) has 12 more horse power than 1973 Rover P5B. (158 HP @ 5200 RPM). In normal driving conditions, 1991 Buick Riviera should accelerate faster than 1973 Rover P5B. With that said, vehicle weight also plays an important factor in acceleration. 1973 Rover P5B weights approximately 60 kg more than 1991 Buick Riviera.
Because 1973 Rover P5B 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 1973 Rover P5B. However, in wet, icy, snow, or gravel driving conditions, 1991 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, 1973 Rover P5B (295 Nm @ 3000 RPM) has 10 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 1973 Rover P5B will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 1973 Rover P5B | |
| Make | Buick | Rover |
| Model | Riviera | P5B |
| Year Released | 1991 | 1973 |
| Body Type | Coupe | Coupe |
| Engine Size | 3800 cc | 3528 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 170 HP | 158 HP |
| Engine RPM | 4800 RPM | 5200 RPM |
| Torque | 285 Nm | 295 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1520 kg | 1580 kg |
| Vehicle Length | 5040 mm | 4750 mm |
| Vehicle Width | 1830 mm | 1790 mm |
| Vehicle Height | 1350 mm | 1480 mm |
| Wheelbase Size | 2760 mm | 2820 mm |
