1991 Buick Riviera vs. 1970 Pontiac Grand Prix
To start off, 1991 Buick Riviera is newer by 21 year(s). Which means there will be less support and parts availability for 1970 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 1970 Pontiac Grand Prix would be higher. At 6,547 cc (8 cylinders), 1970 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 1970 Pontiac Grand Prix (185 HP @ 4600 RPM) has 15 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 1970 Pontiac Grand Prix should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1970 Pontiac Grand Prix weights approximately 265 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.
Because 1970 Pontiac Grand Prix 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 1970 Pontiac Grand Prix. 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, 1970 Pontiac Grand Prix (434 Nm @ 2400 RPM) has 149 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 1970 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 1970 Pontiac Grand Prix | |
| Make | Buick | Pontiac |
| Model | Riviera | Grand Prix |
| Year Released | 1991 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 6547 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 185 HP |
| Engine RPM | 4800 RPM | 4600 RPM |
| Torque | 285 Nm | 434 Nm |
| Torque RPM | 3200 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1520 kg | 1785 kg |
| Vehicle Length | 5040 mm | 5350 mm |
| Vehicle Width | 1830 mm | 1930 mm |
| Vehicle Height | 1350 mm | 1330 mm |
| Wheelbase Size | 2760 mm | 3010 mm |
