1991 BMW 325 vs. 2007 Mercedes-Benz B
To start off, 2007 Mercedes-Benz B is newer by 16 year(s). Which means there will be less support and parts availability for 1991 BMW 325. In addition, the cost of maintenance, including insurance, on 1991 BMW 325 would be higher. At 2,443 cc (6 cylinders), 1991 BMW 325 is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz B (190 HP @ 5000 RPM) has 77 more horse power than 1991 BMW 325. (113 HP @ 4800 RPM) In normal driving conditions, 2007 Mercedes-Benz B should accelerate faster than 1991 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 325 weights approximately 64 kg more than 2007 Mercedes-Benz B.
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, 2007 Mercedes-Benz B (280 Nm @ 1800 RPM) has 60 more torque (in Nm) than 1991 BMW 325. (220 Nm @ 1900 RPM). This means 2007 Mercedes-Benz B will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 325. 2007 Mercedes-Benz B has automatic transmission and 1991 BMW 325 has manual transmission. 1991 BMW 325 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz B will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 BMW 325 | 2007 Mercedes-Benz B | |
| Make | BMW | Mercedes-Benz |
| Model | 325 | B |
| Year Released | 1991 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2443 cc | 2032 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 113 HP | 190 HP |
| Engine RPM | 4800 RPM | 5000 RPM |
| Torque | 220 Nm | 280 Nm |
| Torque RPM | 1900 RPM | 1800 RPM |
| Engine Bore Size | 80 mm | 83 mm |
| Engine Stroke Size | 81 mm | 94 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1434 kg | 1370 kg |
| Vehicle Length | 4440 mm | 4280 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1400 mm | 1610 mm |
| Wheelbase Size | 2710 mm | 2780 mm |
| Fuel Tank Capacity | 70 L | 56 L |
