1978 Cadillac Seville vs. 2007 Cadillac STS
To start off, 2007 Cadillac STS is newer by 29 year(s). Which means there will be less support and parts availability for 1978 Cadillac Seville. In addition, the cost of maintenance, including insurance, on 1978 Cadillac Seville would be higher. At 5,735 cc (8 cylinders), 1978 Cadillac Seville is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 197 more horse power than 1978 Cadillac Seville. (123 HP @ 3600 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1978 Cadillac Seville. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 252 kg more than 2007 Cadillac STS.
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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 123 more torque (in Nm) than 1978 Cadillac Seville. (304 Nm @ 1600 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1978 Cadillac Seville.
Compare all specifications:
| 1978 Cadillac Seville | 2007 Cadillac STS | |
| Make | Cadillac | Cadillac |
| Model | Seville | STS |
| Year Released | 1978 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5735 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 320 HP |
| Engine RPM | 3600 RPM | 6400 RPM |
| Torque | 304 Nm | 427 Nm |
| Torque RPM | 1600 RPM | 4400 RPM |
| Engine Bore Size | 103 mm | 93 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1890 kg | 1638 kg |
| Vehicle Length | 5190 mm | 4990 mm |
| Vehicle Width | 1830 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2910 mm | 2960 mm |
| Fuel Tank Capacity | 79 L | 64 L |
