1978 Cadillac Seville vs. 1979 Mazda 121
To start off, 1979 Mazda 121 is newer by 1 year(s). Which means there will be less support and parts availability for 1978 Cadillac Seville. In addition, the cost of maintenance, including insurance, on 1978 Cadillac Seville would be higher. At 5,735 cc (8 cylinders), 1978 Cadillac Seville is equipped with a bigger engine. In terms of performance, 1978 Cadillac Seville (168 HP @ 4200 RPM) has 78 more horse power than 1979 Mazda 121. (90 HP @ 4800 RPM). In normal driving conditions, 1978 Cadillac Seville should accelerate faster than 1979 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 756 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, 1978 Cadillac Seville (365 Nm @ 2000 RPM) has 205 more torque (in Nm) than 1979 Mazda 121. (160 Nm @ 3000 RPM). This means 1978 Cadillac Seville will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 121.
Compare all specifications:
| 1978 Cadillac Seville | 1979 Mazda 121 | |
| Make | Cadillac | Mazda |
| Model | Seville | 121 |
| Year Released | 1978 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 5735 cc | 1970 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 90 HP |
| Engine RPM | 4200 RPM | 4800 RPM |
| Torque | 365 Nm | 160 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 103 mm | 80 mm |
| Engine Stroke Size | 86 mm | 98 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1890 kg | 1134 kg |
| Vehicle Length | 5190 mm | 4510 mm |
| Vehicle Width | 1830 mm | 1690 mm |
| Vehicle Height | 1400 mm | 1350 mm |
| Wheelbase Size | 2910 mm | 2520 mm |
