1978 BMW 725 vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 29 year(s). Which means there will be less support and parts availability for 1978 BMW 725. In addition, the cost of maintenance, including insurance, on 1978 BMW 725 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 164 more horse power than 1978 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1978 BMW 725.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1978 BMW 725. 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 291 more torque (in Nm) than 1978 BMW 725. (215 Nm @ 4000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1978 BMW 725 | 2007 GMC Sierra | |
| Make | BMW | GMC |
| Model | 725 | Sierra |
| Year Released | 1978 | 2007 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 148 HP | 312 HP |
| Engine RPM | 5500 RPM | 4400 RPM |
| Torque | 215 Nm | 506 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Bore Size | 86.1 mm | 102 mm |
| Engine Stroke Size | 71.6 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 6580 mm |
| Vehicle Width | 1810 mm | 2440 mm |
| Vehicle Height | 1440 mm | 1940 mm |
| Wheelbase Size | 2810 mm | 4250 mm |
