2007 GMC Sierra vs. 2004 Westfield ZEI
To start off, 2007 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Westfield ZEI. In addition, the cost of maintenance, including insurance, on 2004 Westfield ZEI would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (300 HP @ 4400 RPM) has 126 more horse power than 2004 Westfield ZEI. (174 HP @ 9800 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2004 Westfield ZEI.
2007 GMC Sierra has automatic transmission and 2004 Westfield ZEI has manual transmission. 2004 Westfield ZEI will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 GMC Sierra | 2004 Westfield ZEI | |
| Make | GMC | Westfield |
| Model | Sierra | ZEI |
| Year Released | 2007 | 2004 |
| Engine Size | 5999 cc | 1299 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 300 HP | 174 HP |
| Engine RPM | 4400 RPM | 9800 RPM |
| Transmission Type | Automatic | Manual |
| Vehicle Length | 6330 mm | 3550 mm |
| Vehicle Width | 2450 mm | 1570 mm |
| Vehicle Height | 1940 mm | 1060 mm |
| Wheelbase Size | 4010 mm | 2340 mm |
