1979 BMW 633 vs. 2005 Kia Optima
To start off, 2005 Kia Optima is newer by 26 year(s). Which means there will be less support and parts availability for 1979 BMW 633. In addition, the cost of maintenance, including insurance, on 1979 BMW 633 would be higher. At 3,210 cc (6 cylinders), 1979 BMW 633 is equipped with a bigger engine. In terms of performance, 1979 BMW 633 (194 HP @ 5500 RPM) has 24 more horse power than 2005 Kia Optima. (170 HP @ 4000 RPM). In normal driving conditions, 1979 BMW 633 should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 17 kg more than 1979 BMW 633.
Because 1979 BMW 633 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 1979 BMW 633. However, in wet, icy, snow, or gravel driving conditions, 2005 Kia Optima, 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, 1979 BMW 633 (285 Nm) has 40 more torque (in Nm) than 2005 Kia Optima. (245 Nm). This means 1979 BMW 633 will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 1979 BMW 633 | 2005 Kia Optima | |
| Make | BMW | Kia |
| Model | 633 | Optima |
| Year Released | 1979 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3210 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 194 HP | 170 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 285 Nm | 245 Nm |
| Engine Bore Size | 89 mm | 87 mm |
| Engine Stroke Size | 86 mm | 75 mm |
| Engine Compression Ratio | 9.3:1 | 10.0:1 |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1487 kg |
| Vehicle Length | 4760 mm | 4730 mm |
| Vehicle Width | 1760 mm | 1820 mm |
| Vehicle Height | 1390 mm | 1420 mm |
| Wheelbase Size | 2640 mm | 2640 mm |
| Fuel Tank Capacity | 70 L | 65 L |
