2006 BMW Z4 vs. 1978 Mazda 616
To start off, 2006 BMW Z4 is newer by 28 year(s). Which means there will be less support and parts availability for 1978 Mazda 616. In addition, the cost of maintenance, including insurance, on 1978 Mazda 616 would be higher. At 2,170 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (168 HP @ 6250 RPM) has 89 more horse power than 1978 Mazda 616. (79 HP @ 5500 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1978 Mazda 616. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 413 kg more than 1978 Mazda 616. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2006 BMW Z4 (210 Nm @ 3500 RPM) has 86 more torque (in Nm) than 1978 Mazda 616. (124 Nm @ 3500 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 616.
Compare all specifications:
| 2006 BMW Z4 | 1978 Mazda 616 | |
| Make | BMW | Mazda |
| Model | Z4 | 616 |
| Year Released | 2006 | 1978 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2170 cc | 1586 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 79 HP |
| Engine RPM | 6250 RPM | 5500 RPM |
| Torque | 210 Nm | 124 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 80 mm | 78 mm |
| Engine Stroke Size | 72 mm | 83 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1325 kg | 912 kg |
| Vehicle Length | 4100 mm | 4160 mm |
| Vehicle Width | 1790 mm | 1590 mm |
| Vehicle Height | 1310 mm | 1400 mm |
| Wheelbase Size | 2500 mm | 2480 mm |
