2007 GMC Sierra vs. 2005 Westfield ZEI

To start off, 2007 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Westfield ZEI. In addition, the cost of maintenance, including insurance, on 2005 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 (312 HP @ 4400 RPM) has 139 more horse power than 2005 Westfield ZEI. (173 HP @ 9800 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2005 Westfield ZEI. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 2120 kg more than 2005 Westfield ZEI. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.

Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Westfield ZEI. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra 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. 2007 GMC Sierra has automatic transmission and 2005 Westfield ZEI has manual transmission. 2005 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.

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