1968 Buick Riviera vs. 1981 Porsche 928
To start off, 1981 Porsche 928 is newer by 13 year(s). Which means there will be less support and parts availability for 1968 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1968 Buick Riviera would be higher. At 7,050 cc (8 cylinders), 1968 Buick Riviera is equipped with a bigger engine. In terms of performance, 1968 Buick Riviera (305 HP @ 5000 RPM) has 67 more horse power than 1981 Porsche 928. (238 HP @ 5250 RPM). In normal driving conditions, 1968 Buick Riviera should accelerate faster than 1981 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 1968 Buick Riviera weights approximately 450 kg more than 1981 Porsche 928. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1968 Buick Riviera (645 Nm @ 3200 RPM) has 289 more torque (in Nm) than 1981 Porsche 928. (356 Nm @ 3600 RPM). This means 1968 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 928. 1968 Buick Riviera has automatic transmission and 1981 Porsche 928 has manual transmission. 1981 Porsche 928 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1968 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1968 Buick Riviera | 1981 Porsche 928 | |
| Make | Buick | Porsche |
| Model | Riviera | 928 |
| Year Released | 1968 | 1981 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 7050 cc | 4472 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 305 HP | 238 HP |
| Engine RPM | 5000 RPM | 5250 RPM |
| Torque | 645 Nm | 356 Nm |
| Torque RPM | 3200 RPM | 3600 RPM |
| Engine Bore Size | 106.2 mm | 95 mm |
| Engine Stroke Size | 99.4 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 193 km/hour | 229 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1900 kg | 1450 kg |
| Vehicle Length | 5370 mm | 4450 mm |
| Vehicle Width | 2020 mm | 1840 mm |
| Vehicle Height | 1370 mm | 1320 mm |
| Wheelbase Size | 3030 mm | 2510 mm |
| Fuel Tank Capacity | 75 L | 85 L |
