1986 Pontiac Grand Am vs. 1958 Tatra T603
To start off, 1986 Pontiac Grand Am is newer by 28 year(s). Which means there will be less support and parts availability for 1958 Tatra T603. In addition, the cost of maintenance, including insurance, on 1958 Tatra T603 would be higher. At 2,545 cc (8 cylinders), 1958 Tatra T603 is equipped with a bigger engine. In terms of performance, 1958 Tatra T603 (94 HP @ 5000 RPM) has 4 more horse power than 1986 Pontiac Grand Am. (90 HP @ 4400 RPM) In normal driving conditions, 1958 Tatra T603 should accelerate faster than 1986 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 1958 Tatra T603 weights approximately 340 kg more than 1986 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1958 Tatra T603 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1958 Tatra T603. However, in wet, icy, snow, or gravel driving conditions, 1986 Pontiac Grand Am, being front wheel drive (FWD), will offer much better control with better grip. 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, 1986 Pontiac Grand Am (179 Nm @ 2800 RPM) has 21 more torque (in Nm) than 1958 Tatra T603. (158 Nm @ 3000 RPM). This means 1986 Pontiac Grand Am will have an easier job in driving up hills or pulling heavy equipment than 1958 Tatra T603.
Compare all specifications:
| 1986 Pontiac Grand Am | 1958 Tatra T603 | |
| Make | Pontiac | Tatra |
| Model | Grand Am | T603 |
| Year Released | 1986 | 1958 |
| Engine Position | Front | Rear |
| Engine Size | 2471 cc | 2545 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 90 HP | 94 HP |
| Engine RPM | 4400 RPM | 5000 RPM |
| Torque | 179 Nm | 158 Nm |
| Torque RPM | 2800 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Vehicle Weight | 1130 kg | 1470 kg |
| Vehicle Length | 4520 mm | 5070 mm |
| Vehicle Width | 1710 mm | 1920 mm |
| Vehicle Height | 1340 mm | 1540 mm |
| Wheelbase Size | 2630 mm | 2760 mm |
