2003 BMW 520 vs. 2012 Buick Regal
To start off, 2012 Buick Regal is newer by 9 year(s). Which means there will be less support and parts availability for 2003 BMW 520. In addition, the cost of maintenance, including insurance, on 2003 BMW 520 would be higher. At 2,170 cc (6 cylinders), 2003 BMW 520 is equipped with a bigger engine. In terms of performance, 2012 Buick Regal (270 HP @ 5300 RPM) has 103 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM) In normal driving conditions, 2012 Buick Regal should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2012 Buick Regal weights approximately 13 kg more than 2003 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW 520 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 2003 BMW 520. However, in wet, icy, snow, or gravel driving conditions, 2012 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, 2012 Buick Regal (400 Nm @ 2500 RPM) has 190 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2012 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2003 BMW 520 | 2012 Buick Regal | |
| Make | BMW | Buick |
| Model | 520 | Regal |
| Year Released | 2003 | 2012 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2170 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 167 HP | 270 HP |
| Engine RPM | 6100 RPM | 5300 RPM |
| Torque | 210 Nm | 400 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1670 kg | 1683 kg |
| Vehicle Length | 4810 mm | 4831 mm |
| Vehicle Width | 1810 mm | 1857 mm |
| Vehicle Height | 1450 mm | 1473 mm |
| Wheelbase Size | 2890 mm | 2738 mm |
| Fuel Consumption | 7.5 L/100km | 8.7 L/100km |
| Fuel Consumption City | 12.8 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 70 L | 68 L |
