2006 BMW Z4 vs. 2005 Buick Regal
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Buick Regal. In addition, the cost of maintenance, including insurance, on 2005 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2005 Buick Regal is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (343 HP @ 7900 RPM) has 146 more horse power than 2005 Buick Regal. (197 HP @ 5200 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2005 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2005 Buick Regal weights approximately 228 kg more than 2006 BMW Z4.
Because 2006 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 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 2006 BMW Z4 (495 Nm @ 4900 RPM) has 184 more torque (in Nm) than 2005 Buick Regal. (311 Nm @ 4000 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Buick Regal. 2005 Buick Regal has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2005 Buick Regal | |
| Make | BMW | Buick |
| Model | Z4 | Regal |
| Year Released | 2006 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 343 HP | 197 HP |
| Engine RPM | 7900 RPM | 5200 RPM |
| Torque | 495 Nm | 311 Nm |
| Torque RPM | 4900 RPM | 4000 RPM |
| Engine Compression Ratio | 11.5:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1332 kg | 1560 kg |
| Vehicle Length | 4100 mm | 4990 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1300 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2780 mm |
| Fuel Tank Capacity | 60 L | 64 L |
