2004 Buick Regal vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Buick Regal. In addition, the cost of maintenance, including insurance, on 2004 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2004 Buick Regal is equipped with a bigger engine. In terms of performance, 2004 Buick Regal (201 HP @ 5200 RPM) has 17 more horse power than 2005 BMW Z4. (184 HP @ 6100 RPM). In normal driving conditions, 2004 Buick Regal should accelerate faster than 2005 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Buick Regal weights approximately 155 kg more than 2005 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW Z4 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 2005 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Buick Regal (305 Nm) has 68 more torque (in Nm) than 2005 BMW Z4. (237 Nm). This means 2004 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 2004 Buick Regal | 2005 BMW Z4 | |
| Make | Buick | BMW |
| Model | Regal | Z4 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2489 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 184 HP |
| Engine RPM | 5200 RPM | 6100 RPM |
| Torque | 305 Nm | 237 Nm |
| Engine Bore Size | 97 mm | 84 mm |
| Engine Stroke Size | 86 mm | 75 mm |
| Engine Compression Ratio | 9.4:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1550 kg | 1395 kg |
| Vehicle Length | 4990 mm | 4100 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1310 mm |
| Wheelbase Size | 2780 mm | 2500 mm |
| Fuel Consumption | 7.8 L/100km | 8.4 L/100km |
| Fuel Consumption City | 11.8 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 9 L/100km |
| Fuel Tank Capacity | 64 L | 55 L |
