1991 Eagle Summit vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Eagle Summit. In addition, the cost of maintenance, including insurance, on 1991 Eagle Summit 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 201 more horse power than 1991 Eagle Summit. (111 HP @ 6000 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1991 Eagle Summit. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1210 kg more than 1991 Eagle Summit. 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 1991 Eagle Summit. 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. Let's talk about torque, 2007 GMC Sierra (506 Nm @ 4400 RPM) has 349 more torque (in Nm) than 1991 Eagle Summit. (157 Nm @ 4500 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 Eagle Summit.
Compare all specifications:
| 1991 Eagle Summit | 2007 GMC Sierra | |
| Make | Eagle | GMC |
| Model | Summit | Sierra |
| Year Released | 1991 | 2007 |
| Body Type | Station Wagon | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1833 cc | 5999 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 111 HP | 312 HP |
| Engine RPM | 6000 RPM | 4400 RPM |
| Torque | 157 Nm | 506 Nm |
| Torque RPM | 4500 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1225 kg | 2435 kg |
| Vehicle Length | 4290 mm | 6580 mm |
| Vehicle Width | 1700 mm | 2440 mm |
| Vehicle Height | 1660 mm | 1940 mm |
| Wheelbase Size | 2530 mm | 4250 mm |
