1958 AC Ace vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 51 year(s). Which means there will be less support and parts availability for 1958 AC Ace. In addition, the cost of maintenance, including insurance, on 1958 AC Ace would be higher. At 3,564 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (300 HP) has 175 more horse power than 1958 AC Ace. (125 HP) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1958 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 886 kg more than 1958 AC Ace. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2009 Cadillac STS (273 Nm @ 5200 RPM) has 106 more torque (in Nm) than 1958 AC Ace. (167 Nm @ 4500 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1958 AC Ace. 2009 Cadillac STS has automatic transmission and 1958 AC Ace has manual transmission. 1958 AC Ace will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1958 AC Ace | 2009 Cadillac STS | |
| Make | AC | Cadillac |
| Model | Ace | STS |
| Year Released | 1958 | 2009 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1969 cc | 3564 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 300 HP |
| Torque | 167 Nm | 273 Nm |
| Torque RPM | 4500 RPM | 5200 RPM |
| Engine Bore Size | 66 mm | 94 mm |
| Engine Stroke Size | 96 mm | 85.6 mm |
| Engine Compression Ratio | 9.0:1 | 11.3:1 |
| Top Speed | 195 km/hour | 230 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 896 kg | 1782 kg |
| Vehicle Length | 4010 mm | 4990 mm |
| Vehicle Width | 1540 mm | 1850 mm |
| Vehicle Height | 1270 mm | 1470 mm |
| Wheelbase Size | 2290 mm | 2960 mm |
| Fuel Tank Capacity | 59 L | 58 L |
