1966 Alfa Romeo Giulia vs. 1957 Riley 1.5
To start off, 1966 Alfa Romeo Giulia is newer by 9 year(s). Which means there will be less support and parts availability for 1957 Riley 1.5. In addition, the cost of maintenance, including insurance, on 1957 Riley 1.5 would be higher. At 1,570 cc (4 cylinders), 1966 Alfa Romeo Giulia is equipped with a bigger engine. In terms of performance, 1966 Alfa Romeo Giulia (105 HP @ 6200 RPM) has 42 more horse power than 1957 Riley 1.5. (63 HP @ 5000 RPM). In normal driving conditions, 1966 Alfa Romeo Giulia should accelerate faster than 1957 Riley 1.5. With that said, vehicle weight also plays an important factor in acceleration. 1966 Alfa Romeo Giulia weights approximately 37 kg more than 1957 Riley 1.5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1966 Alfa Romeo Giulia (133 Nm @ 4500 RPM) has 21 more torque (in Nm) than 1957 Riley 1.5. (112 Nm @ 2500 RPM). This means 1966 Alfa Romeo Giulia will have an easier job in driving up hills or pulling heavy equipment than 1957 Riley 1.5.
Compare all specifications:
| 1966 Alfa Romeo Giulia | 1957 Riley 1.5 | |
| Make | Alfa Romeo | Riley |
| Model | Giulia | 1.5 |
| Year Released | 1966 | 1957 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 1489 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 105 HP | 63 HP |
| Engine RPM | 6200 RPM | 5000 RPM |
| Torque | 133 Nm | 112 Nm |
| Torque RPM | 4500 RPM | 2500 RPM |
| Engine Bore Size | 78 mm | 73 mm |
| Engine Stroke Size | 82 mm | 88.9 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 972 kg | 935 kg |
| Vehicle Length | 4130 mm | 3890 mm |
| Vehicle Width | 1670 mm | 1560 mm |
| Vehicle Height | 1250 mm | 1510 mm |
| Wheelbase Size | 2260 mm | 2190 mm |
| Fuel Tank Capacity | 100 L | 31 L |
