2003 Buick Regal vs. 1978 Cadillac Seville
To start off, 2003 Buick Regal is newer by 25 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, 2003 Buick Regal (197 HP @ 5200 RPM) has 74 more horse power than 1978 Cadillac Seville. (123 HP @ 3600 RPM). In normal driving conditions, 2003 Buick Regal should accelerate faster than 1978 Cadillac Seville. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 330 kg more than 2003 Buick Regal.
Because 1978 Cadillac Seville is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1978 Cadillac Seville. However, in wet, icy, snow, or gravel driving conditions, 2003 Buick Regal, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 Buick Regal (312 Nm @ 4000 RPM) has 8 more torque (in Nm) than 1978 Cadillac Seville. (304 Nm @ 1600 RPM). This means 2003 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 1978 Cadillac Seville.
Compare all specifications:
| 2003 Buick Regal | 1978 Cadillac Seville | |
| Make | Buick | Cadillac |
| Model | Regal | Seville |
| Year Released | 2003 | 1978 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3789 cc | 5735 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 197 HP | 123 HP |
| Engine RPM | 5200 RPM | 3600 RPM |
| Torque | 312 Nm | 304 Nm |
| Torque RPM | 4000 RPM | 1600 RPM |
| Engine Bore Size | 97 mm | 103 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1890 kg |
| Vehicle Length | 4990 mm | 5190 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1440 mm | 1400 mm |
| Wheelbase Size | 2780 mm | 2910 mm |
| Fuel Tank Capacity | 64 L | 79 L |
