2007 Kia Optima vs. 2012 BMW 640
To start off, 2012 BMW 640 is newer by 5 year(s). Which means there will be less support and parts availability for 2007 Kia Optima. In addition, the cost of maintenance, including insurance, on 2007 Kia Optima would be higher. At 2,993 cc (6 cylinders), 2012 BMW 640 is equipped with a bigger engine. In terms of performance, 2012 BMW 640 (311 HP @ 4400 RPM) has 149 more horse power than 2007 Kia Optima. (162 HP @ 5800 RPM) In normal driving conditions, 2012 BMW 640 should accelerate faster than 2007 Kia Optima.
Because 2012 BMW 640 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 2012 BMW 640. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2012 BMW 640 (630 Nm @ 1500 RPM) has 408 more torque (in Nm) than 2007 Kia Optima. (222 Nm @ 4250 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima. 2012 BMW 640 has automatic transmission and 2007 Kia Optima has manual transmission. 2007 Kia Optima will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 BMW 640 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Kia Optima | 2012 BMW 640 | |
| Make | Kia | BMW |
| Model | Optima | 640 |
| Year Released | 2007 | 2012 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2359 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 162 HP | 311 HP |
| Engine RPM | 5800 RPM | 4400 RPM |
| Torque | 222 Nm | 630 Nm |
| Torque RPM | 4250 RPM | 1500 RPM |
| Drive Type | Front | Rear |
| Transmission Type | Manual | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4740 mm | 4894 mm |
| Vehicle Width | 1810 mm | 1894 mm |
| Vehicle Height | 1490 mm | 1365 mm |
| Wheelbase Size | 2730 mm | 2855 mm |
| Fuel Consumption Highway | 6.9 L/100km | 4.8 L/100km |
| Fuel Consumption City | 9.8 L/100km | 6.7 L/100km |
| Fuel Consumption Overall | 8.4 L/100km | 5.5 L/100km |
| Fuel Tank Capacity | 62 L | 70 L |
