1991 Chrysler Viper vs. 2009 GMC Sierra
To start off, 2009 GMC Sierra is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Chrysler Viper. In addition, the cost of maintenance, including insurance, on 1991 Chrysler Viper would be higher. At 7,986 cc (10 cylinders), 1991 Chrysler Viper is equipped with a bigger engine. In terms of performance, 2009 GMC Sierra (403 HP @ 5700 RPM) has 14 more horse power than 1991 Chrysler Viper. (389 HP @ 5150 RPM) In normal driving conditions, 2009 GMC Sierra should accelerate faster than 1991 Chrysler Viper. With that said, vehicle weight also plays an important factor in acceleration. 2009 GMC Sierra weights approximately 1069 kg more than 1991 Chrysler Viper. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1991 Chrysler Viper. In wet, icy, snow, or gravel driving conditions, 2009 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, 1991 Chrysler Viper (621 Nm @ 3600 RPM) has 56 more torque (in Nm) than 2009 GMC Sierra. (565 Nm @ 4300 RPM). This means 1991 Chrysler Viper will have an easier job in driving up hills or pulling heavy equipment than 2009 GMC Sierra. 2009 GMC Sierra has automatic transmission and 1991 Chrysler Viper has manual transmission. 1991 Chrysler Viper will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Chrysler Viper | 2009 GMC Sierra | |
| Make | Chrysler | GMC |
| Model | Viper | Sierra |
| Year Released | 1991 | 2009 |
| Body Type | Roadster | Pickup |
| Engine Position | Front | Front |
| Engine Size | 7986 cc | 6199 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 389 HP | 403 HP |
| Engine RPM | 5150 RPM | 5700 RPM |
| Torque | 621 Nm | 565 Nm |
| Torque RPM | 3600 RPM | 4300 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1590 kg | 2659 kg |
| Vehicle Length | 4460 mm | 5850 mm |
| Vehicle Width | 1930 mm | 2040 mm |
| Vehicle Height | 1130 mm | 1880 mm |
| Wheelbase Size | 2450 mm | 3650 mm |
