1991 Buick Riviera vs. 2011 Subaru Tribeca
To start off, 2011 Subaru Tribeca is newer by 20 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, 2011 Subaru Tribeca (256 HP @ 6000 RPM) has 86 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM) In normal driving conditions, 2011 Subaru Tribeca should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2011 Subaru Tribeca weights approximately 410 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 2011 Subaru Tribeca 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, 2011 Subaru Tribeca 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, 2011 Subaru Tribeca (335 Nm @ 4400 RPM) has 50 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2011 Subaru Tribeca will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 2011 Subaru Tribeca | |
| Make | Buick | Subaru |
| Model | Riviera | Tribeca |
| Year Released | 1991 | 2011 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 170 HP | 256 HP |
| Engine RPM | 4800 RPM | 6000 RPM |
| Torque | 285 Nm | 335 Nm |
| Torque RPM | 3200 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1520 kg | 1930 kg |
| Vehicle Length | 5040 mm | 4864 mm |
| Vehicle Width | 1830 mm | 1877 mm |
| Vehicle Height | 1350 mm | 1720 mm |
| Wheelbase Size | 2760 mm | 2748 mm |
