2009 Chevrolet Express vs. 1968 Opel Diplomat
To start off, 2009 Chevrolet Express is newer by 41 year(s). Which means there will be less support and parts availability for 1968 Opel Diplomat. In addition, the cost of maintenance, including insurance, on 1968 Opel Diplomat would be higher. At 5,354 cc (8 cylinders), 1968 Opel Diplomat is equipped with a bigger engine. In terms of performance, 2009 Chevrolet Express (301 HP @ 5200 RPM) has 74 more horse power than 1968 Opel Diplomat. (227 HP @ 4700 RPM). In normal driving conditions, 2009 Chevrolet Express should accelerate faster than 1968 Opel Diplomat. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 429 kg more than 2009 Chevrolet Express.
Because 2009 Chevrolet Express is four wheel drive (4WD), it will have significant more traction and grip than 1968 Opel Diplomat. In wet, icy, snow, or gravel driving conditions, 2009 Chevrolet Express will offer significantly more control. 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, 2009 Chevrolet Express (441 Nm @ 4500 RPM) has 14 more torque (in Nm) than 1968 Opel Diplomat. (427 Nm @ 3000 RPM). This means 2009 Chevrolet Express will have an easier job in driving up hills or pulling heavy equipment than 1968 Opel Diplomat.
Compare all specifications:
| 2009 Chevrolet Express | 1968 Opel Diplomat | |
| Make | Chevrolet | Opel |
| Model | Express | Diplomat |
| Year Released | 2009 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 5354 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 301 HP | 227 HP |
| Engine RPM | 5200 RPM | 4700 RPM |
| Torque | 441 Nm | 427 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 8 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1261 kg | 1690 kg |
| Vehicle Length | 5700 mm | 4960 mm |
| Vehicle Width | 2020 mm | 1910 mm |
| Vehicle Height | 2080 mm | 1450 mm |
| Wheelbase Size | 3440 mm | 2850 mm |
| Fuel Tank Capacity | 117 L | 80 L |
