1991 Buick Riviera vs. 2004 Porsche 996
To start off, 2004 Porsche 996 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 2004 Porsche 996 (317 HP @ 6800 RPM) has 147 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2004 Porsche 996 should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Riviera weights approximately 32 kg more than 2004 Porsche 996.
Because 2004 Porsche 996 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 2004 Porsche 996 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, 2004 Porsche 996 (370 Nm @ 4250 RPM) has 85 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2004 Porsche 996 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera. 1991 Buick Riviera has automatic transmission and 2004 Porsche 996 has manual transmission. 2004 Porsche 996 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Buick Riviera | 2004 Porsche 996 | |
| Make | Buick | Porsche |
| Model | Riviera | 996 |
| Year Released | 1991 | 2004 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 3800 cc | 3596 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 170 HP | 317 HP |
| Engine RPM | 4800 RPM | 6800 RPM |
| Torque | 285 Nm | 370 Nm |
| Torque RPM | 3200 RPM | 4250 RPM |
| Engine Bore Size | 96.5 mm | 96 mm |
| Engine Stroke Size | 86.4 mm | 82.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1520 kg | 1488 kg |
| Vehicle Length | 5040 mm | 4440 mm |
| Vehicle Width | 1830 mm | 1780 mm |
| Vehicle Height | 1350 mm | 1310 mm |
| Wheelbase Size | 2760 mm | 2360 mm |
