2007 Alpina B7 vs. 1991 Mazda 121
To start off, 2007 Alpina B7 is newer by 16 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 4,396 cc (8 cylinders), 2007 Alpina B7 is equipped with a bigger engine. In terms of performance, 2007 Alpina B7 (493 HP @ 5500 RPM) has 422 more horse power than 1991 Mazda 121. (71 HP @ 6000 RPM). In normal driving conditions, 2007 Alpina B7 should accelerate faster than 1991 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alpina B7 weights approximately 1140 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 2007 Alpina B7 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 2007 Alpina B7. 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, 2007 Alpina B7 (700 Nm @ 4250 RPM) has 596 more torque (in Nm) than 1991 Mazda 121. (104 Nm @ 3700 RPM). This means 2007 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda 121.
Compare all specifications:
| 2007 Alpina B7 | 1991 Mazda 121 | |
| Make | Alpina | Mazda |
| Model | B7 | 121 |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 1322 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 493 HP | 71 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 700 Nm | 104 Nm |
| Torque RPM | 4250 RPM | 3700 RPM |
| Engine Bore Size | 92 mm | 71 mm |
| Engine Stroke Size | 82.7 mm | 83.6 mm |
| Engine Compression Ratio | 9.0:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1960 kg | 820 kg |
| Vehicle Length | 5040 mm | 3820 mm |
| Vehicle Width | 1910 mm | 1660 mm |
| Vehicle Height | 1480 mm | 1480 mm |
| Wheelbase Size | 3000 mm | 2460 mm |
| Fuel Tank Capacity | 88 L | 43 L |
