1975 Alfa Romeo Alfetta vs. 1997 Caterham C21
To start off, 1997 Caterham C21 is newer by 22 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo Alfetta. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo Alfetta would be higher. At 1,588 cc (4 cylinders), 1997 Caterham C21 is equipped with a bigger engine. In terms of performance, 1997 Caterham C21 (138 HP @ 7000 RPM) has 30 more horse power than 1975 Alfa Romeo Alfetta. (108 HP @ 5600 RPM) In normal driving conditions, 1997 Caterham C21 should accelerate faster than 1975 Alfa Romeo Alfetta. With that said, vehicle weight also plays an important factor in acceleration. 1975 Alfa Romeo Alfetta weights approximately 426 kg more than 1997 Caterham C21.
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, 1997 Caterham C21 (153 Nm @ 5000 RPM) has 11 more torque (in Nm) than 1975 Alfa Romeo Alfetta. (142 Nm @ 4300 RPM). This means 1997 Caterham C21 will have an easier job in driving up hills or pulling heavy equipment than 1975 Alfa Romeo Alfetta.
Compare all specifications:
| 1975 Alfa Romeo Alfetta | 1997 Caterham C21 | |
| Make | Alfa Romeo | Caterham |
| Model | Alfetta | C21 |
| Year Released | 1975 | 1997 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 1588 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 108 HP | 138 HP |
| Engine RPM | 5600 RPM | 7000 RPM |
| Torque | 142 Nm | 153 Nm |
| Torque RPM | 4300 RPM | 5000 RPM |
| Engine Bore Size | 78 mm | 80 mm |
| Engine Stroke Size | 82 mm | 79 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1080 kg | 654 kg |
| Vehicle Length | 4290 mm | 3810 mm |
| Vehicle Width | 1620 mm | 1590 mm |
| Vehicle Height | 1440 mm | 1060 mm |
| Wheelbase Size | 2520 mm | 2260 mm |
