1991 Mercedes-Benz C 112 vs. 2006 BMW 645
To start off, 2006 BMW 645 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz C 112. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz C 112 would be higher. At 5,987 cc (12 cylinders), 1991 Mercedes-Benz C 112 is equipped with a bigger engine. In terms of performance, 1991 Mercedes-Benz C 112 (402 HP @ 5200 RPM) has 74 more horse power than 2006 BMW 645. (328 HP @ 6100 RPM). In normal driving conditions, 1991 Mercedes-Benz C 112 should accelerate faster than 2006 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 142 kg more than 1991 Mercedes-Benz C 112.
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, 1991 Mercedes-Benz C 112 (580 Nm @ 3800 RPM) has 130 more torque (in Nm) than 2006 BMW 645. (450 Nm @ 3600 RPM). This means 1991 Mercedes-Benz C 112 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 645. 2006 BMW 645 has automatic transmission and 1991 Mercedes-Benz C 112 has manual transmission. 1991 Mercedes-Benz C 112 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Mercedes-Benz C 112 | 2006 BMW 645 | |
| Make | Mercedes-Benz | BMW |
| Model | C 112 | 645 |
| Year Released | 1991 | 2006 |
| Engine Position | Middle | Front |
| Engine Size | 5987 cc | 4398 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 402 HP | 328 HP |
| Engine RPM | 5200 RPM | 6100 RPM |
| Torque | 580 Nm | 450 Nm |
| Torque RPM | 3800 RPM | 3600 RPM |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Top Speed | 307 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 5.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1550 kg | 1692 kg |
| Vehicle Length | 4620 mm | 4830 mm |
| Vehicle Width | 1980 mm | 1860 mm |
| Vehicle Height | 1210 mm | 1380 mm |
| Wheelbase Size | 2710 mm | 2790 mm |
| Fuel Tank Capacity | 100 L | 70 L |
