1981 BMW 725 vs. 2007 Chevrolet Impala
To start off, 2007 Chevrolet Impala is newer by 26 year(s). Which means there will be less support and parts availability for 1981 BMW 725. In addition, the cost of maintenance, including insurance, on 1981 BMW 725 would be higher. At 3,507 cc (6 cylinders), 2007 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 2007 Chevrolet Impala (217 HP @ 5800 RPM) has 69 more horse power than 1981 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2007 Chevrolet Impala should accelerate faster than 1981 BMW 725.
Because 1981 BMW 725 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1981 BMW 725. However, in wet, icy, snow, or gravel driving conditions, 2007 Chevrolet Impala, being front wheel drive (FWD), will offer much better control with better grip. 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 Chevrolet Impala (294 Nm @ 4000 RPM) has 79 more torque (in Nm) than 1981 BMW 725. (215 Nm @ 4000 RPM). This means 2007 Chevrolet Impala will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
| 1981 BMW 725 | 2007 Chevrolet Impala | |
| Make | BMW | Chevrolet |
| Model | 725 | Impala |
| Year Released | 1981 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 3507 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 148 HP | 217 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 215 Nm | 294 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 99.1 mm |
| Engine Stroke Size | 71.6 mm | 75.9 mm |
| Engine Compression Ratio | 9.6:1 | 9.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 5100 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1440 mm | 1500 mm |
| Wheelbase Size | 2810 mm | 2810 mm |
