1978 Cadillac Seville vs. 1979 Pontiac Trans Am
To start off, 1979 Pontiac Trans Am is newer by 1 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 6,555 cc (8 cylinders), 1979 Pontiac Trans Am is equipped with a bigger engine. In terms of performance, 1979 Pontiac Trans Am (220 HP) has 97 more horse power than 1978 Cadillac Seville. (123 HP) In normal driving conditions, 1979 Pontiac Trans Am should accelerate faster than 1978 Cadillac Seville.
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, 1979 Pontiac Trans Am (434 Nm) has 130 more torque (in Nm) than 1978 Cadillac Seville. (304 Nm). This means 1979 Pontiac Trans Am will have an easier job in driving up hills or pulling heavy equipment than 1978 Cadillac Seville. 1978 Cadillac Seville has automatic transmission and 1979 Pontiac Trans Am has manual transmission. 1979 Pontiac Trans Am 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 | 1979 Pontiac Trans Am | |
| Make | Cadillac | Pontiac |
| Model | Seville | Trans Am |
| Year Released | 1978 | 1979 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5735 cc | 6555 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 123 HP | 220 HP |
| Torque | 304 Nm | 434 Nm |
| Engine Bore Size | 103 mm | 104.7 mm |
| Engine Stroke Size | 86 mm | 95.3 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5190 mm | 5040 mm |
| Vehicle Width | 1830 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1260 mm |
| Wheelbase Size | 2910 mm | 2750 mm |
