1987 Mazda 929 vs. 2004 BMW 645
To start off, 2004 BMW 645 is newer by 17 year(s). Which means there will be less support and parts availability for 1987 Mazda 929. In addition, the cost of maintenance, including insurance, on 1987 Mazda 929 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 165 more horse power than 1987 Mazda 929. (163 HP @ 5300 RPM) In normal driving conditions, 2004 BMW 645 should accelerate faster than 1987 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 210 kg more than 1987 Mazda 929. 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, 2004 BMW 645 (450 Nm @ 3600 RPM) has 203 more torque (in Nm) than 1987 Mazda 929. (247 Nm @ 4000 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1987 Mazda 929. 2004 BMW 645 has automatic transmission and 1987 Mazda 929 has manual transmission. 1987 Mazda 929 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 Mazda 929 | 2004 BMW 645 | |
| Make | Mazda | BMW |
| Model | 929 | 645 |
| Year Released | 1987 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2954 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 163 HP | 328 HP |
| Engine RPM | 5300 RPM | 6100 RPM |
| Torque | 247 Nm | 450 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1480 kg | 1690 kg |
| Vehicle Length | 4890 mm | 4830 mm |
| Vehicle Width | 1710 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2720 mm | 2830 mm |
