1981 Alfa Romeo GTV6 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 25 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo GTV6. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo GTV6 would be higher. Both 1981 Alfa Romeo GTV6 and 2006 BMW Z4 are equipped with a 2,492 cc engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 31 more horse power than 1981 Alfa Romeo GTV6. (158 HP @ 5600 RPM) In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1981 Alfa Romeo GTV6. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 125 kg more than 1981 Alfa Romeo GTV6. 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 31 more torque (in Nm) than 1981 Alfa Romeo GTV6. (214 Nm @ 4000 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo GTV6.
Compare all specifications:
| 1981 Alfa Romeo GTV6 | 2006 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | GTV6 | Z4 |
| Year Released | 1981 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 158 HP | 189 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 214 Nm | 245 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 88 mm | 84 mm |
| Engine Stroke Size | 68.3 mm | 75 mm |
| Top Speed | 212 km/hour | 235 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1210 kg | 1335 kg |
| Vehicle Length | 4270 mm | 4100 mm |
| Vehicle Width | 1670 mm | 1790 mm |
| Vehicle Height | 1340 mm | 1310 mm |
| Wheelbase Size | 2410 mm | 2500 mm |
| Fuel Tank Capacity | 75 L | 55 L |
