1991 BMW 320 vs. 2003 Mazda Roadster
To start off, 2003 Mazda Roadster is newer by 12 year(s). Which means there will be less support and parts availability for 1991 BMW 320. In addition, the cost of maintenance, including insurance, on 1991 BMW 320 would be higher. At 1,991 cc (6 cylinders), 1991 BMW 320 is equipped with a bigger engine. In terms of performance, 2003 Mazda Roadster (157 HP @ 7000 RPM) has 8 more horse power than 1991 BMW 320. (149 HP @ 5900 RPM) In normal driving conditions, 2003 Mazda Roadster should accelerate faster than 1991 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 320 weights approximately 210 kg more than 2003 Mazda Roadster.
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, 1991 BMW 320 (190 Nm @ 4200 RPM) has 20 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 1991 BMW 320 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 1991 BMW 320 | 2003 Mazda Roadster | |
| Make | BMW | Mazda |
| Model | 320 | Roadster |
| Year Released | 1991 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1839 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 149 HP | 157 HP |
| Engine RPM | 5900 RPM | 7000 RPM |
| Torque | 190 Nm | 170 Nm |
| Torque RPM | 4200 RPM | 5500 RPM |
| Engine Bore Size | 80 mm | 83 mm |
| Engine Stroke Size | 66 mm | 85 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1270 kg | 1060 kg |
| Vehicle Length | 4450 mm | 3960 mm |
| Vehicle Width | 1710 mm | 1690 mm |
| Vehicle Height | 1400 mm | 1240 mm |
| Wheelbase Size | 2710 mm | 2370 mm |
| Fuel Tank Capacity | 65 L | 48 L |
