1981 BMW 725 vs. 2013 Chevrolet Sonic
To start off, 2013 Chevrolet Sonic is newer by 32 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 2,493 cc (6 cylinders), 1981 BMW 725 is equipped with a bigger engine. In terms of performance, 1981 BMW 725 (148 HP @ 5500 RPM) has 14 more horse power than 2013 Chevrolet Sonic. (134 HP @ 4900 RPM). In normal driving conditions, 1981 BMW 725 should accelerate faster than 2013 Chevrolet Sonic.
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, 2013 Chevrolet Sonic, 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, 1981 BMW 725 (215 Nm @ 4000 RPM) has 14 more torque (in Nm) than 2013 Chevrolet Sonic. (201 Nm @ 2500 RPM). This means 1981 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 2013 Chevrolet Sonic.
Compare all specifications:
| 1981 BMW 725 | 2013 Chevrolet Sonic | |
| Make | BMW | Chevrolet |
| Model | 725 | Sonic |
| Year Released | 1981 | 2013 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 1800 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 134 HP |
| Engine RPM | 5500 RPM | 4900 RPM |
| Torque | 215 Nm | 201 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 86 mm | 72 mm |
| Engine Stroke Size | 71.6 mm | 82 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4870 mm | 4039 mm |
| Vehicle Width | 1810 mm | 1735 mm |
| Vehicle Height | 1440 mm | 1517 mm |
| Wheelbase Size | 2810 mm | 2525 mm |
