2004 GMC Sierra vs. 1966 Mercury Comet
To start off, 2004 GMC Sierra is newer by 38 year(s). Which means there will be less support and parts availability for 1966 Mercury Comet. In addition, the cost of maintenance, including insurance, on 1966 Mercury Comet would be higher. At 6,393 cc (8 cylinders), 1966 Mercury Comet is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 33 more horse power than 1966 Mercury Comet. (267 HP). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 1966 Mercury Comet. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 922 kg more than 1966 Mercury Comet. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1966 Mercury Comet (546 Nm) has 58 more torque (in Nm) than 2004 GMC Sierra. (488 Nm). This means 1966 Mercury Comet will have an easier job in driving up hills or pulling heavy equipment than 2004 GMC Sierra.
Compare all specifications:
| 2004 GMC Sierra | 1966 Mercury Comet | |
| Make | GMC | Mercury |
| Model | Sierra | Comet |
| Year Released | 2004 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 6393 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 300 HP | 267 HP |
| Torque | 488 Nm | 546 Nm |
| Number of Seats | 3 seats | 4 seats |
| Vehicle Weight | 2282 kg | 1360 kg |
| Vehicle Length | 5650 mm | 5180 mm |
| Vehicle Width | 2000 mm | 1880 mm |
| Vehicle Height | 1890 mm | 1390 mm |
| Wheelbase Size | 3380 mm | 2950 mm |
