1981 BMW 520 vs. 2005 Mazda AZ
To start off, 2005 Mazda AZ is newer by 24 year(s). Which means there will be less support and parts availability for 1981 BMW 520. In addition, the cost of maintenance, including insurance, on 1981 BMW 520 would be higher. At 1,991 cc (6 cylinders), 1981 BMW 520 is equipped with a bigger engine. In terms of performance, 1981 BMW 520 (123 HP @ 5800 RPM) has 60 more horse power than 2005 Mazda AZ. (63 HP @ 6250 RPM). In normal driving conditions, 1981 BMW 520 should accelerate faster than 2005 Mazda AZ. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 520 weights approximately 460 kg more than 2005 Mazda AZ. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mazda AZ is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 520. In wet, icy, snow, or gravel driving conditions, 2005 Mazda AZ 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, 1981 BMW 520 (170 Nm @ 4000 RPM) has 64 more torque (in Nm) than 2005 Mazda AZ. (106 Nm @ 3500 RPM). This means 1981 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mazda AZ.
Compare all specifications:
1981 BMW 520 | 2005 Mazda AZ | |
Make | BMW | Mazda |
Model | 520 | AZ |
Year Released | 1981 | 2005 |
Body Type | Sedan | SUV |
Engine Position | Front | Front |
Engine Size | 1991 cc | 656 cc |
Engine Cylinders | 6 cylinders | 3 cylinders |
Engine Type | in-line | in-line |
Horse Power | 123 HP | 63 HP |
Engine RPM | 5800 RPM | 6250 RPM |
Torque | 170 Nm | 106 Nm |
Torque RPM | 4000 RPM | 3500 RPM |
Engine Bore Size | 80 mm | 68 mm |
Engine Stroke Size | 66 mm | 60.4 mm |
Engine Compression Ratio | 9.8:1 | 8.4:1 |
Drive Type | Rear | 4WD |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 5 seats |
Vehicle Weight | 1220 kg | 760 kg |
Vehicle Length | 4630 mm | 3400 mm |
Vehicle Width | 1710 mm | 1480 mm |
Vehicle Height | 1430 mm | 1700 mm |
Wheelbase Size | 2630 mm | 2260 mm |