1963 AC Aceca vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 46 year(s). Which means there will be less support and parts availability for 1963 AC Aceca. In addition, the cost of maintenance, including insurance, on 1963 AC Aceca would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (321 HP @ 6400 RPM) has 198 more horse power than 1963 AC Aceca. (123 HP @ 6000 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1963 AC Aceca. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 926 kg more than 1963 AC Aceca. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 1963 AC Aceca. In wet, icy, snow, or gravel driving conditions, 2009 Cadillac STS will offer significantly more control. 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, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 260 more torque (in Nm) than 1963 AC Aceca. (167 Nm @ 4500 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1963 AC Aceca.
Compare all specifications:
| 1963 AC Aceca | 2009 Cadillac STS | |
| Make | AC | Cadillac |
| Model | Aceca | STS |
| Year Released | 1963 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 321 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 167 Nm | 427 Nm |
| Torque RPM | 4500 RPM | 4400 RPM |
| Engine Bore Size | 66 mm | 93 mm |
| Engine Stroke Size | 96 mm | 84 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 894 kg | 1820 kg |
| Vehicle Length | 4070 mm | 4990 mm |
| Vehicle Width | 1560 mm | 1850 mm |
| Vehicle Height | 1330 mm | 1470 mm |
| Wheelbase Size | 2290 mm | 2960 mm |
| Fuel Tank Capacity | 59 L | 66 L |
