1991 Buick Riviera vs. 2012 Porsche 911
To start off, 2012 Porsche 911 is newer by 21 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. Both 1991 Buick Riviera and 2012 Porsche 911 are equipped with a 3,800 cc engine. In terms of performance, 2012 Porsche 911 (530 HP @ 6250 RPM) has 360 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2012 Porsche 911 should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2012 Porsche 911 weights approximately 140 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 2012 Porsche 911 is all wheel drive (AWD), it will have significant more traction and grip than 1991 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 2012 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, 2012 Porsche 911 (699 Nm @ 2100 RPM) has 414 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2012 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 2012 Porsche 911 | |
| Make | Buick | Porsche |
| Model | Riviera | 911 |
| Year Released | 1991 | 2012 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 3800 cc | 3800 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 170 HP | 530 HP |
| Engine RPM | 4800 RPM | 6250 RPM |
| Torque | 285 Nm | 699 Nm |
| Torque RPM | 3200 RPM | 2100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | 7-speed automated manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1520 kg | 1660 kg |
| Vehicle Length | 5040 mm | 4478 mm |
| Vehicle Width | 1830 mm | 1852 mm |
| Vehicle Height | 1350 mm | 1300 mm |
| Wheelbase Size | 2760 mm | 2350 mm |
