1978 Cadillac Seville vs. 1986 Ford Sierra
To start off, 1986 Ford Sierra is newer by 8 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, 1978 Cadillac Seville (123 HP @ 3600 RPM) has 34 more horse power than 1986 Ford Sierra. (89 HP @ 5400 RPM). In normal driving conditions, 1978 Cadillac Seville should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 876 kg more than 1986 Ford Sierra. 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, 1978 Cadillac Seville (304 Nm @ 1600 RPM) has 161 more torque (in Nm) than 1986 Ford Sierra. (143 Nm @ 3500 RPM). This means 1978 Cadillac Seville will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra. 1978 Cadillac Seville has automatic transmission and 1986 Ford Sierra has manual transmission. 1986 Ford Sierra 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 | 1986 Ford Sierra | |
| Make | Cadillac | Ford |
| Model | Seville | Sierra |
| Year Released | 1978 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 5735 cc | 1769 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 89 HP |
| Engine RPM | 3600 RPM | 5400 RPM |
| Torque | 304 Nm | 143 Nm |
| Torque RPM | 1600 RPM | 3500 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1890 kg | 1014 kg |
| Vehicle Length | 5190 mm | 4400 mm |
| Vehicle Width | 1830 mm | 1680 mm |
| Vehicle Height | 1400 mm | 1370 mm |
| Wheelbase Size | 2910 mm | 2620 mm |
