1978 Cadillac Seville vs. 2006 BMW 630
To start off, 2006 BMW 630 is newer by 28 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, 2006 BMW 630 (254 HP @ 6600 RPM) has 131 more horse power than 1978 Cadillac Seville. (123 HP @ 3600 RPM) In normal driving conditions, 2006 BMW 630 should accelerate faster than 1978 Cadillac Seville. With that said, vehicle weight also plays an important factor in acceleration. 1978 Cadillac Seville weights approximately 324 kg more than 2006 BMW 630.
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 4 more torque (in Nm) than 2006 BMW 630. (300 Nm @ 2500 RPM). This means 1978 Cadillac Seville will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 630.
Compare all specifications:
| 1978 Cadillac Seville | 2006 BMW 630 | |
| Make | Cadillac | BMW |
| Model | Seville | 630 |
| Year Released | 1978 | 2006 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5735 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 254 HP |
| Engine RPM | 3600 RPM | 6600 RPM |
| Torque | 304 Nm | 300 Nm |
| Torque RPM | 1600 RPM | 2500 RPM |
| Engine Bore Size | 103 mm | 85 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1890 kg | 1566 kg |
| Vehicle Length | 5190 mm | 4830 mm |
| Vehicle Width | 1830 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1380 mm |
| Wheelbase Size | 2910 mm | 2790 mm |
| Fuel Tank Capacity | 79 L | 70 L |
