1981 BMW 745 vs. 2005 Mercedes-Benz C
To start off, 2005 Mercedes-Benz C is newer by 24 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 3,430 cc (6 cylinders), 1981 BMW 745 is equipped with a bigger engine. In terms of performance, 1981 BMW 745 (252 HP @ 5200 RPM) has 31 more horse power than 2005 Mercedes-Benz C. (221 HP @ 3800 RPM). In normal driving conditions, 1981 BMW 745 should accelerate faster than 2005 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz C weights approximately 90 kg more than 1981 BMW 745.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2005 Mercedes-Benz C (510 Nm @ 1600 RPM) has 130 more torque (in Nm) than 1981 BMW 745. (380 Nm @ 2200 RPM). This means 2005 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 745. 2005 Mercedes-Benz C has automatic transmission and 1981 BMW 745 has manual transmission. 1981 BMW 745 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Mercedes-Benz C will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 745 | 2005 Mercedes-Benz C | |
| Make | BMW | Mercedes-Benz |
| Model | 745 | C |
| Year Released | 1981 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 2987 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 252 HP | 221 HP |
| Engine RPM | 5200 RPM | 3800 RPM |
| Torque | 380 Nm | 510 Nm |
| Torque RPM | 2200 RPM | 1600 RPM |
| Engine Bore Size | 92 mm | 83.1 mm |
| Engine Stroke Size | 86 mm | 92 mm |
| Engine Compression Ratio | 8.0:1 | 18.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1590 kg | 1680 kg |
| Vehicle Length | 4870 mm | 4550 mm |
| Vehicle Width | 1810 mm | 1730 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2700 mm |
| Fuel Tank Capacity | 100 L | 62 L |
