2003 Lexus IS vs. 1968 Opel Diplomat
To start off, 2003 Lexus IS is newer by 35 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, 1968 Opel Diplomat (227 HP @ 4700 RPM) has 74 more horse power than 2003 Lexus IS. (153 HP @ 6200 RPM) In normal driving conditions, 1968 Opel Diplomat should accelerate faster than 2003 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 290 kg more than 2003 Lexus IS. 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 231 more torque (in Nm) than 2003 Lexus IS. (196 Nm @ 4600 RPM). This means 1968 Opel Diplomat will have an easier job in driving up hills or pulling heavy equipment than 2003 Lexus IS. 1968 Opel Diplomat has automatic transmission and 2003 Lexus IS has manual transmission. 2003 Lexus IS 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:
| 2003 Lexus IS | 1968 Opel Diplomat | |
| Make | Lexus | Opel |
| Model | IS | Diplomat |
| Year Released | 2003 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 1988 cc | 5354 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 153 HP | 227 HP |
| Engine RPM | 6200 RPM | 4700 RPM |
| Torque | 196 Nm | 427 Nm |
| Torque RPM | 4600 RPM | 3000 RPM |
| Engine Bore Size | 75 mm | 101.6 mm |
| Engine Stroke Size | 75 mm | 82.6 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1400 kg | 1690 kg |
| Vehicle Length | 4410 mm | 4960 mm |
| Vehicle Width | 1730 mm | 1910 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2680 mm | 2850 mm |
| Fuel Tank Capacity | 70 L | 80 L |
