2003 BMW 325 vs. 1991 Mazda 121
To start off, 2003 BMW 325 is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Mazda 121. In addition, the cost of maintenance, including insurance, on 1991 Mazda 121 would be higher. At 2,494 cc (6 cylinders), 2003 BMW 325 is equipped with a bigger engine. In terms of performance, 2003 BMW 325 (192 HP @ 6000 RPM) has 121 more horse power than 1991 Mazda 121. (71 HP @ 6000 RPM). In normal driving conditions, 2003 BMW 325 should accelerate faster than 1991 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 325 weights approximately 660 kg more than 1991 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2003 BMW 325 (245 Nm @ 3500 RPM) has 141 more torque (in Nm) than 1991 Mazda 121. (104 Nm @ 3700 RPM). This means 2003 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda 121.
Compare all specifications:
| 2003 BMW 325 | 1991 Mazda 121 | |
| Make | BMW | Mazda |
| Model | 325 | 121 |
| Year Released | 2003 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1322 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 192 HP | 71 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 104 Nm |
| Torque RPM | 3500 RPM | 3700 RPM |
| Engine Bore Size | 84.1 mm | 71 mm |
| Engine Stroke Size | 75 mm | 83.6 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1480 kg | 820 kg |
| Vehicle Length | 4270 mm | 3820 mm |
| Vehicle Width | 1760 mm | 1660 mm |
| Vehicle Height | 1410 mm | 1480 mm |
| Wheelbase Size | 2730 mm | 2460 mm |
| Fuel Tank Capacity | 63 L | 43 L |
