1968 Buick Riviera vs. 1991 Porsche 911
To start off, 1991 Porsche 911 is newer by 23 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 77 more horse power than 1991 Porsche 911. (228 HP @ 5900 RPM). In normal driving conditions, 1968 Buick Riviera should accelerate faster than 1991 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 1968 Buick Riviera weights approximately 725 kg more than 1991 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1968 Buick Riviera (645 Nm @ 3200 RPM) has 359 more torque (in Nm) than 1991 Porsche 911. (286 Nm @ 4800 RPM). This means 1968 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 911.
Compare all specifications:
| 1968 Buick Riviera | 1991 Porsche 911 | |
| Make | Buick | Porsche |
| Model | Riviera | 911 |
| Year Released | 1968 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 7050 cc | 3163 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 305 HP | 228 HP |
| Engine RPM | 5000 RPM | 5900 RPM |
| Torque | 645 Nm | 286 Nm |
| Torque RPM | 3200 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1900 kg | 1175 kg |
| Vehicle Length | 5370 mm | 4300 mm |
| Vehicle Width | 2020 mm | 1660 mm |
| Vehicle Height | 1370 mm | 1260 mm |
