1978 Avanti Avanti vs. 1977 Cadillac Seville
To start off, 1978 Avanti Avanti is newer by 1 year(s). Which means there will be less support and parts availability for 1977 Cadillac Seville. In addition, the cost of maintenance, including insurance, on 1977 Cadillac Seville would be higher. At 6,568 cc (8 cylinders), 1978 Avanti Avanti is equipped with a bigger engine. In terms of performance, 1977 Cadillac Seville (178 HP @ 4400 RPM) has 1 more horse power than 1978 Avanti Avanti. (177 HP @ 3400 RPM) In normal driving conditions, 1977 Cadillac Seville should accelerate faster than 1978 Avanti Avanti. With that said, vehicle weight also plays an important factor in acceleration. 1977 Cadillac Seville weights approximately 320 kg more than 1978 Avanti Avanti. 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 Avanti Avanti (442 Nm @ 2000 RPM) has 70 more torque (in Nm) than 1977 Cadillac Seville. (372 Nm @ 2000 RPM). This means 1978 Avanti Avanti will have an easier job in driving up hills or pulling heavy equipment than 1977 Cadillac Seville. 1977 Cadillac Seville has automatic transmission and 1978 Avanti Avanti has manual transmission. 1978 Avanti Avanti will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1977 Cadillac Seville will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1978 Avanti Avanti | 1977 Cadillac Seville | |
| Make | Avanti | Cadillac |
| Model | Avanti | Seville |
| Year Released | 1978 | 1977 |
| Engine Size | 6568 cc | 5735 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 177 HP | 178 HP |
| Engine RPM | 3400 RPM | 4400 RPM |
| Torque | 442 Nm | 372 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1580 kg | 1900 kg |
| Vehicle Length | 4910 mm | 5190 mm |
| Vehicle Width | 1800 mm | 1830 mm |
| Vehicle Height | 1380 mm | 1400 mm |
| Wheelbase Size | 2780 mm | 2910 mm |
