1989 Buick Riviera vs. 2005 Toyota Sienna
To start off, 2005 Toyota Sienna is newer by 16 year(s). Which means there will be less support and parts availability for 1989 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1989 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1989 Buick Riviera is equipped with a bigger engine. In terms of performance, 2005 Toyota Sienna (230 HP @ 5300 RPM) has 65 more horse power than 1989 Buick Riviera. (165 HP @ 4800 RPM) In normal driving conditions, 2005 Toyota Sienna should accelerate faster than 1989 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2005 Toyota Sienna weights approximately 456 kg more than 1989 Buick Riviera. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Toyota Sienna is four wheel drive (4WD), it will have significant more traction and grip than 1989 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 2005 Toyota Sienna 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, 2005 Toyota Sienna (328 Nm) has 43 more torque (in Nm) than 1989 Buick Riviera. (285 Nm). This means 2005 Toyota Sienna will have an easier job in driving up hills or pulling heavy equipment than 1989 Buick Riviera.
Compare all specifications:
| 1989 Buick Riviera | 2005 Toyota Sienna | |
| Make | Buick | Toyota |
| Model | Riviera | Sienna |
| Year Released | 1989 | 2005 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 3298 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 165 HP | 230 HP |
| Engine RPM | 4800 RPM | 5300 RPM |
| Torque | 285 Nm | 328 Nm |
| Engine Bore Size | 96.5 mm | 92.1 mm |
| Engine Stroke Size | 86.4 mm | 83 mm |
| Engine Compression Ratio | 8.5:1 | 10.8:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1524 kg | 1980 kg |
| Vehicle Length | 5040 mm | 5090 mm |
| Vehicle Width | 1830 mm | 1970 mm |
| Wheelbase Size | 2760 mm | 3040 mm |
