1950 Alfa Romeo GP 158 vs. 1973 Mazda 929
To start off, 1973 Mazda 929 is newer by 23 year(s). Which means there will be less support and parts availability for 1950 Alfa Romeo GP 158. In addition, the cost of maintenance, including insurance, on 1950 Alfa Romeo GP 158 would be higher. At 1,769 cc (4 cylinders), 1973 Mazda 929 is equipped with a bigger engine. In terms of performance, 1950 Alfa Romeo GP 158 (346 HP @ 8500 RPM) has 263 more horse power than 1973 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 1950 Alfa Romeo GP 158 should accelerate faster than 1973 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1973 Mazda 929 weights approximately 370 kg more than 1950 Alfa Romeo GP 158.
Compare all specifications:
| 1950 Alfa Romeo GP 158 | 1973 Mazda 929 | |
| Make | Alfa Romeo | Mazda |
| Model | GP 158 | 929 |
| Year Released | 1950 | 1973 |
| Engine Size | 1479 cc | 1769 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 346 HP | 83 HP |
| Engine RPM | 8500 RPM | 5000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 700 kg | 1070 kg |
| Wheelbase Size | 2510 mm | 2520 mm |
