1970 Alfa Romeo Junior vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 35 year(s). Which means there will be less support and parts availability for 1970 Alfa Romeo Junior. In addition, the cost of maintenance, including insurance, on 1970 Alfa Romeo Junior 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 82 more horse power than 1970 Alfa Romeo Junior. (86 HP @ 6000 RPM) In normal driving conditions, 2005 BMW Z4 should accelerate faster than 1970 Alfa Romeo Junior. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW Z4 weights approximately 355 kg more than 1970 Alfa Romeo Junior. 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 95 more torque (in Nm) than 1970 Alfa Romeo Junior. (115 Nm @ 3200 RPM). This means 2005 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1970 Alfa Romeo Junior.
Compare all specifications:
| 1970 Alfa Romeo Junior | 2005 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | Junior | Z4 |
| Year Released | 1970 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1290 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 86 HP | 168 HP |
| Engine RPM | 6000 RPM | 6250 RPM |
| Torque | 115 Nm | 210 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Engine Bore Size | 74 mm | 80 mm |
| Engine Stroke Size | 75 mm | 72 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Vehicle Weight | 970 kg | 1325 kg |
| Vehicle Length | 3910 mm | 4100 mm |
| Vehicle Width | 1560 mm | 1790 mm |
| Vehicle Height | 1290 mm | 1310 mm |
| Wheelbase Size | 2260 mm | 2500 mm |
