1975 BMW 320 vs. 1991 Porsche 964
To start off, 1991 Porsche 964 is newer by 16 year(s). Which means there will be less support and parts availability for 1975 BMW 320. In addition, the cost of maintenance, including insurance, on 1975 BMW 320 would be higher. At 3,600 cc (6 cylinders), 1991 Porsche 964 is equipped with a bigger engine. In terms of performance, 1991 Porsche 964 (261 HP @ 6100 RPM) has 152 more horse power than 1975 BMW 320. (109 HP @ 5800 RPM) In normal driving conditions, 1991 Porsche 964 should accelerate faster than 1975 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 964 weights approximately 85 kg more than 1975 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Porsche 964 is four wheel drive (4WD), it will have significant more traction and grip than 1975 BMW 320. In wet, icy, snow, or gravel driving conditions, 1991 Porsche 964 will offer significantly more control. 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 Porsche 964 (318 Nm @ 4800 RPM) has 161 more torque (in Nm) than 1975 BMW 320. (157 Nm @ 3700 RPM). This means 1991 Porsche 964 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 320.
Compare all specifications:
| 1975 BMW 320 | 1991 Porsche 964 | |
| Make | BMW | Porsche |
| Model | 320 | 964 |
| Year Released | 1975 | 1991 |
| Engine Position | Front | Rear |
| Engine Size | 1990 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 109 HP | 261 HP |
| Engine RPM | 5800 RPM | 6100 RPM |
| Torque | 157 Nm | 318 Nm |
| Torque RPM | 3700 RPM | 4800 RPM |
| Engine Bore Size | 89 mm | 100.1 mm |
| Engine Stroke Size | 80 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1120 kg | 1205 kg |
| Vehicle Length | 4360 mm | 4260 mm |
| Vehicle Width | 1620 mm | 1660 mm |
| Vehicle Height | 1350 mm | 1330 mm |
| Wheelbase Size | 2580 mm | 2280 mm |
| Fuel Tank Capacity | 52 L | 73 L |
