2006 Cadillac STS vs. 1973 AC 428
To start off, 2006 Cadillac STS is newer by 33 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 45 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM) In normal driving conditions, 1973 AC 428 should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 352 kg more than 1973 AC 428.
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, 1973 AC 428 (639 Nm @ 2800 RPM) has 297 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 1973 AC 428 | |
| Make | Cadillac | AC |
| Model | STS | 428 |
| Year Released | 2006 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 7002 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 253 HP | 298 HP |
| Engine RPM | 6500 RPM | 4600 RPM |
| Torque | 342 Nm | 639 Nm |
| Torque RPM | 3200 RPM | 2800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1782 kg | 1430 kg |
| Vehicle Length | 4990 mm | 4430 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2960 mm | 2450 mm |
