2005 Porsche 911 vs. 1981 Tatra T613
To start off, 2005 Porsche 911 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Tatra T613. In addition, the cost of maintenance, including insurance, on 1981 Tatra T613 would be higher. At 3,595 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (316 HP @ 4250 RPM) has 149 more horse power than 1981 Tatra T613. (167 HP @ 5600 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1981 Tatra T613. With that said, vehicle weight also plays an important factor in acceleration. 1981 Tatra T613 weights approximately 195 kg more than 2005 Porsche 911.
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, 2005 Porsche 911 (370 Nm @ 4250 RPM) has 100 more torque (in Nm) than 1981 Tatra T613. (270 Nm @ 3300 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1981 Tatra T613. 2005 Porsche 911 has automatic transmission and 1981 Tatra T613 has manual transmission. 1981 Tatra T613 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Porsche 911 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Porsche 911 | 1981 Tatra T613 | |
| Make | Porsche | Tatra |
| Model | 911 | T613 |
| Year Released | 2005 | 1981 |
| Body Type | Convertible | Sedan |
| Engine Position | Rear | Rear |
| Engine Size | 3595 cc | 3495 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 316 HP | 167 HP |
| Engine RPM | 4250 RPM | 5600 RPM |
| Torque | 370 Nm | 270 Nm |
| Torque RPM | 4250 RPM | 3300 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1690 kg |
| Vehicle Length | 4440 mm | 5030 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2360 mm | 2990 mm |
