2003 AC Cobra vs. 1991 Mazda 121
To start off, 2003 AC Cobra 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 3,506 cc (8 cylinders), 2003 AC Cobra is equipped with a bigger engine. In terms of performance, 2003 AC Cobra (350 HP @ 6500 RPM) has 279 more horse power than 1991 Mazda 121. (71 HP @ 6000 RPM). In normal driving conditions, 2003 AC Cobra should accelerate faster than 1991 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2003 AC Cobra weights approximately 162 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.
Because 2003 AC Cobra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 AC Cobra. However, in wet, icy, snow, or gravel driving conditions, 1991 Mazda 121, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 AC Cobra (400 Nm @ 4000 RPM) has 296 more torque (in Nm) than 1991 Mazda 121. (104 Nm @ 3700 RPM). This means 2003 AC Cobra will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda 121.
Compare all specifications:
| 2003 AC Cobra | 1991 Mazda 121 | |
| Make | AC | Mazda |
| Model | Cobra | 121 |
| Year Released | 2003 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 1323 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 350 HP | 71 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 400 Nm | 104 Nm |
| Torque RPM | 4000 RPM | 3700 RPM |
| Engine Bore Size | 83 mm | 71 mm |
| Engine Stroke Size | 81 mm | 83.6 mm |
| Engine Compression Ratio | 8.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1062 kg | 900 kg |
| Vehicle Length | 4210 mm | 3820 mm |
| Vehicle Width | 1750 mm | 1660 mm |
| Vehicle Height | 1210 mm | 1480 mm |
| Wheelbase Size | 2300 mm | 2400 mm |
