2004 GMC Sierra vs. 1978 Mercury Cougar
To start off, 2004 GMC Sierra is newer by 26 year(s). Which means there will be less support and parts availability for 1978 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1978 Mercury Cougar would be higher. At 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 167 more horse power than 1978 Mercury Cougar. (133 HP). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 1978 Mercury Cougar. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 427 kg more than 1978 Mercury Cougar. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 GMC Sierra (488 Nm) has 152 more torque (in Nm) than 1978 Mercury Cougar. (336 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Mercury Cougar.
Compare all specifications:
| 2004 GMC Sierra | 1978 Mercury Cougar | |
| Make | GMC | Mercury |
| Model | Sierra | Cougar |
| Year Released | 2004 | 1978 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 4941 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 300 HP | 133 HP |
| Torque | 488 Nm | 336 Nm |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2282 kg | 1855 kg |
| Vehicle Length | 5650 mm | 5480 mm |
| Vehicle Width | 2000 mm | 2010 mm |
| Vehicle Height | 1890 mm | 1340 mm |
| Wheelbase Size | 3380 mm | 2910 mm |
