1973 Chevrolet Impala vs. 1978 GMC Jimmy
To start off, 1978 GMC Jimmy is newer by 5 year(s). Which means there will be less support and parts availability for 1973 Chevrolet Impala. In addition, the cost of maintenance, including insurance, on 1973 Chevrolet Impala would be higher. At 4,097 cc (6 cylinders), 1973 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 1973 Chevrolet Impala (110 HP @ 3800 RPM) has 10 more horse power than 1978 GMC Jimmy. (100 HP @ 3600 RPM). In normal driving conditions, 1973 Chevrolet Impala should accelerate faster than 1978 GMC Jimmy. With that said, vehicle weight also plays an important factor in acceleration. 1978 GMC Jimmy weights approximately 85 kg more than 1973 Chevrolet Impala.
Because 1978 GMC Jimmy is four wheel drive (4WD), it will have significant more traction and grip than 1973 Chevrolet Impala. In wet, icy, snow, or gravel driving conditions, 1978 GMC Jimmy 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, 1973 Chevrolet Impala (251 Nm @ 1600 RPM) has 9 more torque (in Nm) than 1978 GMC Jimmy. (242 Nm @ 1600 RPM). This means 1973 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 1978 GMC Jimmy. 1978 GMC Jimmy has automatic transmission and 1973 Chevrolet Impala has manual transmission. 1973 Chevrolet Impala will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1978 GMC Jimmy will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 Chevrolet Impala | 1978 GMC Jimmy | |
| Make | Chevrolet | GMC |
| Model | Impala | Jimmy |
| Year Released | 1973 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 4097 cc | 4093 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 110 HP | 100 HP |
| Engine RPM | 3800 RPM | 3600 RPM |
| Torque | 251 Nm | 242 Nm |
| Torque RPM | 1600 RPM | 1600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1715 kg | 1800 kg |
| Vehicle Length | 5600 mm | 4690 mm |
| Vehicle Width | 2030 mm | 2030 mm |
| Vehicle Height | 1370 mm | 1840 mm |
| Wheelbase Size | 3100 mm | 2720 mm |
