2001 BMW Z18 vs. 2012 BMW 520
To start off, 2012 BMW 520 is newer by 11 year(s). Which means there will be less support and parts availability for 2001 BMW Z18. In addition, the cost of maintenance, including insurance, on 2001 BMW Z18 would be higher. At 4,400 cc (8 cylinders), 2001 BMW Z18 is equipped with a bigger engine. In terms of performance, 2001 BMW Z18 (323 HP @ 7400 RPM) has 141 more horse power than 2012 BMW 520. (182 HP @ 4000 RPM). In normal driving conditions, 2001 BMW Z18 should accelerate faster than 2012 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW Z18 weights approximately 5 kg more than 2012 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 BMW Z18 is four wheel drive (4WD), it will have significant more traction and grip than 2012 BMW 520. In wet, icy, snow, or gravel driving conditions, 2001 BMW Z18 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, 2012 BMW 520 (380 Nm) has 40 more torque (in Nm) than 2001 BMW Z18. (340 Nm). This means 2012 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2001 BMW Z18.
Compare all specifications:
| 2001 BMW Z18 | 2012 BMW 520 | |
| Make | BMW | BMW |
| Model | Z18 | 520 |
| Year Released | 2001 | 2012 |
| Engine Position | Front | Front |
| Engine Size | 4400 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 323 HP | 182 HP |
| Engine RPM | 7400 RPM | 4000 RPM |
| Torque | 340 Nm | 380 Nm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1700 kg | 1695 kg |
| Wheelbase Size | 2730 mm | 2968 mm |
| Fuel Tank Capacity | 63 L | 70 L |
