1956 Alfa Romeo Giulietta vs. 1968 Opel Diplomat
To start off, 1968 Opel Diplomat is newer by 12 year(s). Which means there will be less support and parts availability for 1956 Alfa Romeo Giulietta. In addition, the cost of maintenance, including insurance, on 1956 Alfa Romeo Giulietta would be higher. At 5,354 cc (8 cylinders), 1968 Opel Diplomat is equipped with a bigger engine. In terms of performance, 1968 Opel Diplomat (227 HP @ 4700 RPM) has 137 more horse power than 1956 Alfa Romeo Giulietta. (90 HP @ 6500 RPM) In normal driving conditions, 1968 Opel Diplomat should accelerate faster than 1956 Alfa Romeo Giulietta. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 795 kg more than 1956 Alfa Romeo Giulietta. 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, 1968 Opel Diplomat (427 Nm @ 3000 RPM) has 319 more torque (in Nm) than 1956 Alfa Romeo Giulietta. (108 Nm @ 4500 RPM). This means 1968 Opel Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1956 Alfa Romeo Giulietta. 1968 Opel Diplomat has automatic transmission and 1956 Alfa Romeo Giulietta has manual transmission. 1956 Alfa Romeo Giulietta will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1968 Opel Diplomat will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 Alfa Romeo Giulietta | 1968 Opel Diplomat | |
| Make | Alfa Romeo | Opel |
| Model | Giulietta | Diplomat |
| Year Released | 1956 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 1290 cc | 5354 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 90 HP | 227 HP |
| Engine RPM | 6500 RPM | 4700 RPM |
| Torque | 108 Nm | 427 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Engine Bore Size | 74.1 mm | 101.6 mm |
| Engine Stroke Size | 75 mm | 82.6 mm |
| Engine Compression Ratio | 9.1:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 895 kg | 1690 kg |
| Vehicle Length | 3990 mm | 4960 mm |
| Vehicle Width | 1540 mm | 1910 mm |
| Vehicle Height | 1330 mm | 1450 mm |
| Wheelbase Size | 2390 mm | 2850 mm |
| Fuel Tank Capacity | 71 L | 80 L |
