1981 Alfa Romeo Alfa 6 vs. 2011 BMW Z4
To start off, 2011 BMW Z4 is newer by 30 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Alfa 6. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Alfa 6 would be higher. At 2,494 cc (5 cylinders), 1981 Alfa Romeo Alfa 6 is equipped with a bigger engine. In terms of performance, 2011 BMW Z4 (182 HP @ 5000 RPM) has 78 more horse power than 1981 Alfa Romeo Alfa 6. (104 HP @ 4300 RPM) In normal driving conditions, 2011 BMW Z4 should accelerate faster than 1981 Alfa Romeo Alfa 6. With that said, vehicle weight also plays an important factor in acceleration. 1981 Alfa Romeo Alfa 6 weights approximately 100 kg more than 2011 BMW Z4.
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, 2011 BMW Z4 (270 Nm @ 1250 RPM) has 64 more torque (in Nm) than 1981 Alfa Romeo Alfa 6. (206 Nm @ 2400 RPM). This means 2011 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo Alfa 6.
Compare all specifications:
| 1981 Alfa Romeo Alfa 6 | 2011 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | Alfa 6 | Z4 |
| Year Released | 1981 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1997 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 182 HP |
| Engine RPM | 4300 RPM | 5000 RPM |
| Torque | 206 Nm | 270 Nm |
| Torque RPM | 2400 RPM | 1250 RPM |
| Engine Bore Size | 88 mm | 90.1 mm |
| Engine Stroke Size | 82 mm | 84 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1580 kg | 1480 kg |
| Vehicle Length | 4690 mm | 4239 mm |
| Vehicle Width | 1690 mm | 1791 mm |
| Vehicle Height | 1430 mm | 1290 mm |
| Wheelbase Size | 2610 mm | 2497 mm |
| Fuel Tank Capacity | 50 L | 55 L |
