2005 BMW 645 vs. 1978 Mazda RX-7
To start off, 2005 BMW 645 is newer by 27 year(s). Which means there will be less support and parts availability for 1978 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1978 Mazda RX-7 would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 221 more horse power than 1978 Mazda RX-7. (105 HP @ 6000 RPM). In normal driving conditions, 2005 BMW 645 should accelerate faster than 1978 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 835 kg more than 1978 Mazda RX-7. 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 645 (447 Nm @ 3600 RPM) has 302 more torque (in Nm) than 1978 Mazda RX-7. (145 Nm @ 4000 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda RX-7.
Compare all specifications:
2005 BMW 645 | 1978 Mazda RX-7 | |
Make | BMW | Mazda |
Model | 645 | RX-7 |
Year Released | 2005 | 1978 |
Body Type | Convertible | Coupe |
Engine Position | Front | Front |
Engine Size | 4392 cc | 2292 cc |
Engine Type | V | dual-disk rotary |
Horse Power | 326 HP | 105 HP |
Engine RPM | 6100 RPM | 6000 RPM |
Torque | 447 Nm | 145 Nm |
Torque RPM | 3600 RPM | 4000 RPM |
Engine Compression Ratio | 10.5:1 | 9.4:1 |
Fuel Type | Gasoline - Premium | Gasoline |
Top Speed | 250 km/hour | 185 km/hour |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1895 kg | 1060 kg |
Vehicle Length | 4830 mm | 4290 mm |
Vehicle Width | 1860 mm | 1680 mm |
Vehicle Height | 1380 mm | 1280 mm |
Wheelbase Size | 2890 mm | 2430 mm |
Fuel Tank Capacity | 70 L | 65 L |