2004 BMW X5 vs. 1991 BMW 320
To start off, 2004 BMW X5 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 BMW 320. In addition, the cost of maintenance, including insurance, on 1991 BMW 320 would be higher. At 4,799 cc (8 cylinders), 2004 BMW X5 is equipped with a bigger engine. In terms of performance, 2004 BMW X5 (355 HP @ 6200 RPM) has 206 more horse power than 1991 BMW 320. (149 HP @ 5900 RPM). In normal driving conditions, 2004 BMW X5 should accelerate faster than 1991 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW X5 weights approximately 1005 kg more than 1991 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW 320. In wet, icy, snow, or gravel driving conditions, 2004 BMW X5 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, 2004 BMW X5 (500 Nm @ 3600 RPM) has 310 more torque (in Nm) than 1991 BMW 320. (190 Nm @ 4200 RPM). This means 2004 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 320. 2004 BMW X5 has automatic transmission and 1991 BMW 320 has manual transmission. 1991 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 BMW X5 | 1991 BMW 320 | |
| Make | BMW | BMW |
| Model | X5 | 320 |
| Year Released | 2004 | 1991 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 1991 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 355 HP | 149 HP |
| Engine RPM | 6200 RPM | 5900 RPM |
| Torque | 500 Nm | 190 Nm |
| Torque RPM | 3600 RPM | 4200 RPM |
| Engine Bore Size | 93.1 mm | 80 mm |
| Engine Stroke Size | 88.3 mm | 66 mm |
| Acceleration 0-100mph | 6.1 seconds | 9.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2275 kg | 1270 kg |
| Vehicle Length | 4670 mm | 4450 mm |
| Vehicle Width | 1880 mm | 1710 mm |
| Vehicle Height | 1730 mm | 1400 mm |
| Wheelbase Size | 2940 mm | 2710 mm |
| Fuel Tank Capacity | 93 L | 65 L |
