1961 AC Ace vs. 2005 Audi S4
To start off, 2005 Audi S4 is newer by 44 year(s). Which means there will be less support and parts availability for 1961 AC Ace. In addition, the cost of maintenance, including insurance, on 1961 AC Ace would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 240 more horse power than 1961 AC Ace. (100 HP @ 5500 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 1961 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 1027 kg more than 1961 AC Ace. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 230 more torque (in Nm) than 1961 AC Ace. (180 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1961 AC Ace.
Compare all specifications:
| 1961 AC Ace | 2005 Audi S4 | |
| Make | AC | Audi |
| Model | Ace | S4 |
| Year Released | 1961 | 2005 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2553 cc | 4161 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 100 HP | 340 HP |
| Engine RPM | 5500 RPM | 6300 RPM |
| Torque | 180 Nm | 410 Nm |
| Engine Bore Size | 82.6 mm | 85 mm |
| Engine Stroke Size | 79.5 mm | 93 mm |
| Engine Compression Ratio | 7.8:1 | 11.0:1 |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 813 kg | 1840 kg |
| Vehicle Length | 3860 mm | 4580 mm |
| Vehicle Width | 1490 mm | 1780 mm |
| Vehicle Height | 1250 mm | 1400 mm |
| Wheelbase Size | 2290 mm | 2660 mm |
| Fuel Tank Capacity | 54 L | 63 L |
