1989 Jaguar XJR vs. 1979 Mazda 121
To start off, 1989 Jaguar XJR is newer by 10 year(s). Which means there will be less support and parts availability for 1979 Mazda 121. In addition, the cost of maintenance, including insurance, on 1979 Mazda 121 would be higher. At 5,996 cc (12 cylinders), 1989 Jaguar XJR is equipped with a bigger engine. In terms of performance, 1989 Jaguar XJR (318 HP @ 5250 RPM) has 228 more horse power than 1979 Mazda 121. (90 HP @ 4800 RPM). In normal driving conditions, 1989 Jaguar XJR should accelerate faster than 1979 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 1989 Jaguar XJR weights approximately 666 kg more than 1979 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1989 Jaguar XJR (476 Nm @ 3750 RPM) has 316 more torque (in Nm) than 1979 Mazda 121. (160 Nm @ 3000 RPM). This means 1989 Jaguar XJR will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 121.
Compare all specifications:
| 1989 Jaguar XJR | 1979 Mazda 121 | |
| Make | Jaguar | Mazda |
| Model | XJR | 121 |
| Year Released | 1989 | 1979 |
| Engine Position | Middle | Front |
| Engine Size | 5996 cc | 1970 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 318 HP | 90 HP |
| Engine RPM | 5250 RPM | 4800 RPM |
| Torque | 476 Nm | 160 Nm |
| Torque RPM | 3750 RPM | 3000 RPM |
| Engine Bore Size | 90.1 mm | 80 mm |
| Engine Stroke Size | 78.5 mm | 98 mm |
| Engine Compression Ratio | 11.2:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 1800 kg | 1134 kg |
| Vehicle Length | 4770 mm | 4510 mm |
| Vehicle Width | 1890 mm | 1690 mm |
| Vehicle Height | 1270 mm | 1350 mm |
| Wheelbase Size | 2600 mm | 2520 mm |
