1991 Mazda 121 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 14 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 3,605 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 6000 RPM) has 374 more horse power than 1991 Mazda 121. (71 HP @ 6000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1991 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 770 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, 2005 Porsche 911 (620 Nm) has 516 more torque (in Nm) than 1991 Mazda 121. (104 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda 121.
Compare all specifications:
| 1991 Mazda 121 | 2005 Porsche 911 | |
| Make | Mazda | Porsche |
| Model | 121 | 911 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 1322 cc | 3605 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 71 HP | 445 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 104 Nm | 620 Nm |
| Engine Bore Size | 71 mm | 100 mm |
| Engine Stroke Size | 83.6 mm | 76 mm |
| Engine Compression Ratio | 9.4:1 | 9.4:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 820 kg | 1590 kg |
| Vehicle Length | 3820 mm | 4440 mm |
| Vehicle Width | 1660 mm | 1840 mm |
| Vehicle Height | 1480 mm | 1300 mm |
| Wheelbase Size | 2460 mm | 2360 mm |
| Fuel Tank Capacity | 43 L | 63 L |
