1978 Cadillac Seville vs. 1990 Porsche 928
To start off, 1990 Porsche 928 is newer by 12 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, 1990 Porsche 928 (330 HP @ 6200 RPM) has 207 more horse power than 1978 Cadillac Seville. (123 HP @ 3600 RPM) In normal driving conditions, 1990 Porsche 928 should accelerate faster than 1978 Cadillac Seville. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 310 kg more than 1990 Porsche 928.
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, 1990 Porsche 928 (430 Nm @ 4100 RPM) has 126 more torque (in Nm) than 1978 Cadillac Seville. (304 Nm @ 1600 RPM). This means 1990 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1978 Cadillac Seville. 1978 Cadillac Seville has automatic transmission and 1990 Porsche 928 has manual transmission. 1990 Porsche 928 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1978 Cadillac Seville will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1978 Cadillac Seville | 1990 Porsche 928 | |
| Make | Cadillac | Porsche |
| Model | Seville | 928 |
| Year Released | 1978 | 1990 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5735 cc | 4957 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 330 HP |
| Engine RPM | 3600 RPM | 6200 RPM |
| Torque | 304 Nm | 430 Nm |
| Torque RPM | 1600 RPM | 4100 RPM |
| Engine Bore Size | 103 mm | 100 mm |
| Engine Stroke Size | 86 mm | 78.9 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1890 kg | 1580 kg |
| Vehicle Length | 5190 mm | 4450 mm |
| Vehicle Width | 1830 mm | 1840 mm |
| Vehicle Height | 1400 mm | 1290 mm |
| Wheelbase Size | 2910 mm | 2510 mm |
