1985 Alfa Romeo 75 vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 20 year(s). Which means there will be less support and parts availability for 1985 Alfa Romeo 75. In addition, the cost of maintenance, including insurance, on 1985 Alfa Romeo 75 would be higher. At 2,171 cc (6 cylinders), 2005 BMW Z4 is equipped with a bigger engine. In terms of performance, 2005 BMW Z4 (168 HP @ 6250 RPM) has 60 more horse power than 1985 Alfa Romeo 75. (108 HP @ 6000 RPM) In normal driving conditions, 2005 BMW Z4 should accelerate faster than 1985 Alfa Romeo 75. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW Z4 weights approximately 265 kg more than 1985 Alfa Romeo 75. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 BMW Z4 (210 Nm @ 3500 RPM) has 61 more torque (in Nm) than 1985 Alfa Romeo 75. (149 Nm @ 4000 RPM). This means 2005 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1985 Alfa Romeo 75.
Compare all specifications:
| 1985 Alfa Romeo 75 | 2005 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 75 | Z4 |
| Year Released | 1985 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1567 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 108 HP | 168 HP |
| Engine RPM | 6000 RPM | 6250 RPM |
| Torque | 149 Nm | 210 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 78 mm | 80 mm |
| Engine Stroke Size | 82 mm | 72 mm |
| Engine Compression Ratio | 9.0:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1060 kg | 1325 kg |
| Vehicle Length | 4340 mm | 4100 mm |
| Vehicle Width | 1670 mm | 1790 mm |
| Vehicle Height | 1410 mm | 1310 mm |
| Wheelbase Size | 2520 mm | 2500 mm |
| Fuel Tank Capacity | 49 L | 55 L |
