2005 Chevrolet Avalanche vs. 1998 Toyota Sienna
To start off, 2005 Chevrolet Avalanche is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Toyota Sienna. In addition, the cost of maintenance, including insurance, on 1998 Toyota Sienna would be higher. At 8,128 cc (8 cylinders), 2005 Chevrolet Avalanche is equipped with a bigger engine. In terms of performance, 2005 Chevrolet Avalanche (320 HP @ 5600 RPM) has 131 more horse power than 1998 Toyota Sienna. (189 HP @ 5200 RPM). In normal driving conditions, 2005 Chevrolet Avalanche should accelerate faster than 1998 Toyota Sienna. With that said, vehicle weight also plays an important factor in acceleration. 2005 Chevrolet Avalanche weights approximately 1279 kg more than 1998 Toyota Sienna. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Chevrolet Avalanche is four wheel drive (4WD), it will have significant more traction and grip than 1998 Toyota Sienna. In wet, icy, snow, or gravel driving conditions, 2005 Chevrolet Avalanche 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 Chevrolet Avalanche (597 Nm) has 318 more torque (in Nm) than 1998 Toyota Sienna. (279 Nm). This means 2005 Chevrolet Avalanche will have an easier job in driving up hills or pulling heavy equipment than 1998 Toyota Sienna.
Compare all specifications:
| 2005 Chevrolet Avalanche | 1998 Toyota Sienna | |
| Make | Chevrolet | Toyota |
| Model | Avalanche | Sienna |
| Year Released | 2005 | 1998 |
| Body Type | Pickup | Minivan |
| Engine Position | Front | Front |
| Engine Size | 8128 cc | 2982 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 320 HP | 189 HP |
| Engine RPM | 5600 RPM | 5200 RPM |
| Torque | 597 Nm | 279 Nm |
| Engine Bore Size | 108 mm | 87.6 mm |
| Engine Stroke Size | 111 mm | 83 mm |
| Engine Compression Ratio | 9.1:1 | 10.0:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 2984 kg | 1705 kg |
| Vehicle Length | 5640 mm | 4920 mm |
| Vehicle Width | 2030 mm | 1870 mm |
| Vehicle Height | 1880 mm | 1720 mm |
| Wheelbase Size | 3310 mm | 2910 mm |
