1983 Porsche 930 vs. 1974 Tatra T603
To start off, 1983 Porsche 930 is newer by 9 year(s). Which means there will be less support and parts availability for 1974 Tatra T603. In addition, the cost of maintenance, including insurance, on 1974 Tatra T603 would be higher. At 3,297 cc (6 cylinders), 1983 Porsche 930 is equipped with a bigger engine. In terms of performance, 1983 Porsche 930 (296 HP @ 5500 RPM) has 192 more horse power than 1974 Tatra T603. (104 HP @ 4500 RPM). In normal driving conditions, 1983 Porsche 930 should accelerate faster than 1974 Tatra T603. With that said, vehicle weight also plays an important factor in acceleration. 1974 Tatra T603 weights approximately 170 kg more than 1983 Porsche 930.
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, 1983 Porsche 930 (440 Nm @ 4000 RPM) has 269 more torque (in Nm) than 1974 Tatra T603. (171 Nm @ 3500 RPM). This means 1983 Porsche 930 will have an easier job in driving up hills or pulling heavy equipment than 1974 Tatra T603.
Compare all specifications:
| 1983 Porsche 930 | 1974 Tatra T603 | |
| Make | Porsche | Tatra |
| Model | 930 | T603 |
| Year Released | 1983 | 1974 |
| Body Type | Convertible | Sedan |
| Engine Position | Rear | Rear |
| Engine Size | 3297 cc | 2472 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 296 HP | 104 HP |
| Engine RPM | 5500 RPM | 4500 RPM |
| Torque | 440 Nm | 171 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1300 kg | 1470 kg |
| Vehicle Length | 4300 mm | 5070 mm |
| Vehicle Width | 1780 mm | 1920 mm |
| Vehicle Height | 1320 mm | 1540 mm |
| Wheelbase Size | 2510 mm | 2760 mm |
