1971 Buick Riviera vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1971 Buick Riviera would be higher. At 7,468 cc (8 cylinders), 1971 Buick Riviera is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (414 HP @ 6000 RPM) has 103 more horse power than 1971 Buick Riviera. (311 HP @ 4200 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1971 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1971 Buick Riviera weights approximately 420 kg more than 2005 Porsche 911.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 will offer significantly more control. 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, 1971 Buick Riviera (617 Nm @ 2600 RPM) has 57 more torque (in Nm) than 2005 Porsche 911. (560 Nm @ 2700 RPM). This means 1971 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911.
Compare all specifications:
| 1971 Buick Riviera | 2005 Porsche 911 | |
| Make | Buick | Porsche |
| Model | Riviera | 911 |
| Year Released | 1971 | 2005 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 7468 cc | 3596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 311 HP | 414 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 617 Nm | 560 Nm |
| Torque RPM | 2600 RPM | 2700 RPM |
| Engine Compression Ratio | 8.3:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2040 kg | 1620 kg |
| Vehicle Length | 5560 mm | 4440 mm |
| Vehicle Width | 2040 mm | 1840 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 3110 mm | 2360 mm |
