1957 AC Ace vs. 1956 Tatra T603
To start off, 1957 AC Ace is newer by 1 year(s). Which means there will be less support and parts availability for 1956 Tatra T603. In addition, the cost of maintenance, including insurance, on 1956 Tatra T603 would be higher. At 2,545 cc (8 cylinders), 1956 Tatra T603 is equipped with a bigger engine. In terms of performance, 1957 AC Ace (123 HP @ 6000 RPM) has 28 more horse power than 1956 Tatra T603. (95 HP @ 5000 RPM). In normal driving conditions, 1957 AC Ace should accelerate faster than 1956 Tatra T603. With that said, vehicle weight also plays an important factor in acceleration. 1956 Tatra T603 weights approximately 576 kg more than 1957 AC Ace.
Let's talk about torque, 1957 AC Ace (167 Nm @ 4500 RPM) has 9 more torque (in Nm) than 1956 Tatra T603. (158 Nm @ 3000 RPM). This means 1957 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 1956 Tatra T603.
Compare all specifications:
| 1957 AC Ace | 1956 Tatra T603 | |
| Make | AC | Tatra |
| Model | Ace | T603 |
| Year Released | 1957 | 1956 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Rear |
| Engine Size | 1971 cc | 2545 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 123 HP | 95 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 167 Nm | 158 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1470 kg |
| Vehicle Length | 3850 mm | 5070 mm |
| Vehicle Width | 1520 mm | 1920 mm |
| Vehicle Height | 1250 mm | 1540 mm |
| Wheelbase Size | 2290 mm | 2760 mm |
